Home / 99,681,728.70-149,522,593.05-86,244,800.70

Finding the Fourth Proportional to 99,681,728.70, 149,522,593.05 and 86,244,800.70

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Solution

The fourth proportional to 99,681,728.70, 149,522,593.05 and 86,244,800.70 is: 129,367,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,681,728.70 : 149,522,593.05 = 86,244,800.70 : x
  2. Step 2: Convert to fraction form
    99,681,728.70/149,522,593.05 = 86,244,800.70/x
  3. Step 3: Cross multiply
    99,681,728.70x = 149,522,593.05 × 86,244,800.70
  4. Step 4: Simplify right side
    99,681,728.70x = 12,895,546,237,744,456
  5. Step 5: Solve for x
    x = 12,895,546,237,744,456/99,681,728.70
  6. Step 6: Final answer
    x = 129,367,201.05

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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.