Home / 99,072,467.20-148,466,983.20-72,960,999.40

Finding the Fourth Proportional to 99,072,467.20, 148,466,983.20 and 72,960,999.40

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Solution

The fourth proportional to 99,072,467.20, 148,466,983.20 and 72,960,999.40 is: 109,337,132.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,072,467.20 : 148,466,983.20 = 72,960,999.40 : x
  2. Step 2: Convert to fraction form
    99,072,467.20/148,466,983.20 = 72,960,999.40/x
  3. Step 3: Cross multiply
    99,072,467.20x = 148,466,983.20 × 72,960,999.40
  4. Step 4: Simplify right side
    99,072,467.20x = 10,832,299,472,175,010
  5. Step 5: Solve for x
    x = 10,832,299,472,175,010/99,072,467.20
  6. Step 6: Final answer
    x = 109,337,132.49

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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.