Home / 131,114,625.74-180,948,198.75-72,388,601.90

Finding the Fourth Proportional to 131,114,625.74, 180,948,198.75 and 72,388,601.90

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Solution

The fourth proportional to 131,114,625.74, 180,948,198.75 and 72,388,601.90 is: 99,901,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,114,625.74 : 180,948,198.75 = 72,388,601.90 : x
  2. Step 2: Convert to fraction form
    131,114,625.74/180,948,198.75 = 72,388,601.90/x
  3. Step 3: Cross multiply
    131,114,625.74x = 180,948,198.75 × 72,388,601.90
  4. Step 4: Simplify right side
    131,114,625.74x = 13,098,587,123,835,828
  5. Step 5: Solve for x
    x = 13,098,587,123,835,828/131,114,625.74
  6. Step 6: Final answer
    x = 99,901,800.05

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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.