Home / 1,002,507,842.28-1,383,391,565.10-556,436,113.68

Finding the Fourth Proportional to 1,002,507,842.28, 1,383,391,565.10 and 556,436,113.68

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Solution

The fourth proportional to 1,002,507,842.28, 1,383,391,565.10 and 556,436,113.68 is: 767,843,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,507,842.28 : 1,383,391,565.10 = 556,436,113.68 : x
  2. Step 2: Convert to fraction form
    1,002,507,842.28/1,383,391,565.10 = 556,436,113.68/x
  3. Step 3: Cross multiply
    1,002,507,842.28x = 1,383,391,565.10 × 556,436,113.68
  4. Step 4: Simplify right side
    1,002,507,842.28x = 769,769,026,181,936,640
  5. Step 5: Solve for x
    x = 769,769,026,181,936,640/1,002,507,842.28
  6. Step 6: Final answer
    x = 767,843,396.05

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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.