Home / 1,229,678,977,855.60-1,697,010,332,028.50-680,970,282,788.60

Finding the Fourth Proportional to 1,229,678,977,855.60, 1,697,010,332,028.50 and 680,970,282,788.60

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Solution

The fourth proportional to 1,229,678,977,855.60, 1,697,010,332,028.50 and 680,970,282,788.60 is: 939,768,530,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,678,977,855.60 : 1,697,010,332,028.50 = 680,970,282,788.60 : x
  2. Step 2: Convert to fraction form
    1,229,678,977,855.60/1,697,010,332,028.50 = 680,970,282,788.60/x
  3. Step 3: Cross multiply
    1,229,678,977,855.60x = 1,697,010,332,028.50 × 680,970,282,788.60
  4. Step 4: Simplify right side
    1,229,678,977,855.60x = 1,155,613,605,696,623,572,156,416
  5. Step 5: Solve for x
    x = 1,155,613,605,696,623,572,156,416/1,229,678,977,855.60
  6. Step 6: Final answer
    x = 939,768,530,248.33

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Double scale
Find fourth proportional to 1,229,678,977,856.60, 1,697,010,332,029.88 and 680,970,282,789.60
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.