Home / 1,229,678,977,856.30-1,697,010,332,029.50-680,970,282,789.30

Finding the Fourth Proportional to 1,229,678,977,856.30, 1,697,010,332,029.50 and 680,970,282,789.30

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Solution

The fourth proportional to 1,229,678,977,856.30, 1,697,010,332,029.50 and 680,970,282,789.30 is: 939,768,530,249.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,678,977,856.30 : 1,697,010,332,029.50 = 680,970,282,789.30 : x
  2. Step 2: Convert to fraction form
    1,229,678,977,856.30/1,697,010,332,029.50 = 680,970,282,789.30/x
  3. Step 3: Cross multiply
    1,229,678,977,856.30x = 1,697,010,332,029.50 × 680,970,282,789.30
  4. Step 4: Simplify right side
    1,229,678,977,856.30x = 1,155,613,605,698,492,554,018,816
  5. Step 5: Solve for x
    x = 1,155,613,605,698,492,554,018,816/1,229,678,977,856.30
  6. Step 6: Final answer
    x = 939,768,530,249.31

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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.