Home / 1,229,678,977,857.30-1,697,010,332,030.90-680,970,282,790.30

Finding the Fourth Proportional to 1,229,678,977,857.30, 1,697,010,332,030.90 and 680,970,282,790.30

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Solution

The fourth proportional to 1,229,678,977,857.30, 1,697,010,332,030.90 and 680,970,282,790.30 is: 939,768,530,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,678,977,857.30 : 1,697,010,332,030.90 = 680,970,282,790.30 : x
  2. Step 2: Convert to fraction form
    1,229,678,977,857.30/1,697,010,332,030.90 = 680,970,282,790.30/x
  3. Step 3: Cross multiply
    1,229,678,977,857.30x = 1,697,010,332,030.90 × 680,970,282,790.30
  4. Step 4: Simplify right side
    1,229,678,977,857.30x = 1,155,613,605,701,142,951,493,632
  5. Step 5: Solve for x
    x = 1,155,613,605,701,142,951,493,632/1,229,678,977,857.30
  6. Step 6: Final answer
    x = 939,768,530,250.70

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Double scale
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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.