Home / 1,443,172,387.38-2,165,577,489.12-779,177,564.78

Finding the Fourth Proportional to 1,443,172,387.38, 2,165,577,489.12 and 779,177,564.78

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Solution

The fourth proportional to 1,443,172,387.38, 2,165,577,489.12 and 779,177,564.78 is: 1,169,208,480.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,172,387.38 : 2,165,577,489.12 = 779,177,564.78 : x
  2. Step 2: Convert to fraction form
    1,443,172,387.38/2,165,577,489.12 = 779,177,564.78/x
  3. Step 3: Cross multiply
    1,443,172,387.38x = 2,165,577,489.12 × 779,177,564.78
  4. Step 4: Simplify right side
    1,443,172,387.38x = 1,687,369,394,322,098,432
  5. Step 5: Solve for x
    x = 1,687,369,394,322,098,432/1,443,172,387.38
  6. Step 6: Final answer
    x = 1,169,208,480.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.