Home / 99,072,419.70-148,466,911.95-72,960,951.90

Finding the Fourth Proportional to 99,072,419.70, 148,466,911.95 and 72,960,951.90

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Solution

The fourth proportional to 99,072,419.70, 148,466,911.95 and 72,960,951.90 is: 109,337,061.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,072,419.70 : 148,466,911.95 = 72,960,951.90 : x
  2. Step 2: Convert to fraction form
    99,072,419.70/148,466,911.95 = 72,960,951.90/x
  3. Step 3: Cross multiply
    99,072,419.70x = 148,466,911.95 × 72,960,951.90
  4. Step 4: Simplify right side
    99,072,419.70x = 10,832,287,221,525,486
  5. Step 5: Solve for x
    x = 10,832,287,221,525,486/99,072,419.70
  6. Step 6: Final answer
    x = 109,337,061.26

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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.