Home / 131,109,635.32-180,931,332.91-72,372,338.62

Finding the Fourth Proportional to 131,109,635.32, 180,931,332.91 and 72,372,338.62

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Solution

The fourth proportional to 131,109,635.32, 180,931,332.91 and 72,372,338.62 is: 99,873,847.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,109,635.32 : 180,931,332.91 = 72,372,338.62 : x
  2. Step 2: Convert to fraction form
    131,109,635.32/180,931,332.91 = 72,372,338.62/x
  3. Step 3: Cross multiply
    131,109,635.32x = 180,931,332.91 × 72,372,338.62
  4. Step 4: Simplify right side
    131,109,635.32x = 13,094,423,691,425,812
  5. Step 5: Solve for x
    x = 13,094,423,691,425,812/131,109,635.32
  6. Step 6: Final answer
    x = 99,873,847.26

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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.