Home / 87,754,433.70-131,631,650.55-66,071,640.90

Finding the Fourth Proportional to 87,754,433.70, 131,631,650.55 and 66,071,640.90

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Solution

The fourth proportional to 87,754,433.70, 131,631,650.55 and 66,071,640.90 is: 99,107,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,754,433.70 : 131,631,650.55 = 66,071,640.90 : x
  2. Step 2: Convert to fraction form
    87,754,433.70/131,631,650.55 = 66,071,640.90/x
  3. Step 3: Cross multiply
    87,754,433.70x = 131,631,650.55 × 66,071,640.90
  4. Step 4: Simplify right side
    87,754,433.70x = 8,697,119,146,213,887
  5. Step 5: Solve for x
    x = 8,697,119,146,213,887/87,754,433.70
  6. Step 6: Final answer
    x = 99,107,461.35

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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.