Home / 876,691,691.55-1,209,497,782.47-500,369,166.85

Finding the Fourth Proportional to 876,691,691.55, 1,209,497,782.47 and 500,369,166.85

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Solution

The fourth proportional to 876,691,691.55, 1,209,497,782.47 and 500,369,166.85 is: 690,317,250.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,691,691.55 : 1,209,497,782.47 = 500,369,166.85 : x
  2. Step 2: Convert to fraction form
    876,691,691.55/1,209,497,782.47 = 500,369,166.85/x
  3. Step 3: Cross multiply
    876,691,691.55x = 1,209,497,782.47 × 500,369,166.85
  4. Step 4: Simplify right side
    876,691,691.55x = 605,195,397,721,436,416
  5. Step 5: Solve for x
    x = 605,195,397,721,436,416/876,691,691.55
  6. Step 6: Final answer
    x = 690,317,250.13

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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.