Home / 99,026,446.20-148,397,951.70-72,914,978.40

Finding the Fourth Proportional to 99,026,446.20, 148,397,951.70 and 72,914,978.40

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Solution

The fourth proportional to 99,026,446.20, 148,397,951.70 and 72,914,978.40 is: 109,268,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,026,446.20 : 148,397,951.70 = 72,914,978.40 : x
  2. Step 2: Convert to fraction form
    99,026,446.20/148,397,951.70 = 72,914,978.40/x
  3. Step 3: Cross multiply
    99,026,446.20x = 148,397,951.70 × 72,914,978.40
  4. Step 4: Simplify right side
    99,026,446.20x = 10,820,433,442,809,744
  5. Step 5: Solve for x
    x = 10,820,433,442,809,744/99,026,446.20
  6. Step 6: Final answer
    x = 109,268,118.35

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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.