Home / 128,730,107.10-192,945,861.45-52,002,759.90

Finding the Fourth Proportional to 128,730,107.10, 192,945,861.45 and 52,002,759.90

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Solution

The fourth proportional to 128,730,107.10, 192,945,861.45 and 52,002,759.90 is: 77,943,827.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,730,107.10 : 192,945,861.45 = 52,002,759.90 : x
  2. Step 2: Convert to fraction form
    128,730,107.10/192,945,861.45 = 52,002,759.90/x
  3. Step 3: Cross multiply
    128,730,107.10x = 192,945,861.45 × 52,002,759.90
  4. Step 4: Simplify right side
    128,730,107.10x = 10,033,717,306,683,014
  5. Step 5: Solve for x
    x = 10,033,717,306,683,014/128,730,107.10
  6. Step 6: Final answer
    x = 77,943,827.85

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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.