Home / 721,777,172.04-996,053,234.58-391,752,379.08

Finding the Fourth Proportional to 721,777,172.04, 996,053,234.58 and 391,752,379.08

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Solution

The fourth proportional to 721,777,172.04, 996,053,234.58 and 391,752,379.08 is: 540,618,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,777,172.04 : 996,053,234.58 = 391,752,379.08 : x
  2. Step 2: Convert to fraction form
    721,777,172.04/996,053,234.58 = 391,752,379.08/x
  3. Step 3: Cross multiply
    721,777,172.04x = 996,053,234.58 × 391,752,379.08
  4. Step 4: Simplify right side
    721,777,172.04x = 390,206,224,337,044,352
  5. Step 5: Solve for x
    x = 390,206,224,337,044,352/721,777,172.04
  6. Step 6: Final answer
    x = 540,618,683.23

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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.