Home / 99,521,229.20-149,281,843.80-82,515,117.20

Finding the Fourth Proportional to 99,521,229.20, 149,281,843.80 and 82,515,117.20

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Solution

The fourth proportional to 99,521,229.20, 149,281,843.80 and 82,515,117.20 is: 123,772,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,521,229.20 : 149,281,843.80 = 82,515,117.20 : x
  2. Step 2: Convert to fraction form
    99,521,229.20/149,281,843.80 = 82,515,117.20/x
  3. Step 3: Cross multiply
    99,521,229.20x = 149,281,843.80 × 82,515,117.20
  4. Step 4: Simplify right side
    99,521,229.20x = 12,318,008,836,989,094
  5. Step 5: Solve for x
    x = 12,318,008,836,989,094/99,521,229.20
  6. Step 6: Final answer
    x = 123,772,675.80

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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.