Home / 87,437,332.80-131,155,999.20-84,917,908.80

Finding the Fourth Proportional to 87,437,332.80, 131,155,999.20 and 84,917,908.80

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Solution

The fourth proportional to 87,437,332.80, 131,155,999.20 and 84,917,908.80 is: 127,376,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,437,332.80 : 131,155,999.20 = 84,917,908.80 : x
  2. Step 2: Convert to fraction form
    87,437,332.80/131,155,999.20 = 84,917,908.80/x
  3. Step 3: Cross multiply
    87,437,332.80x = 131,155,999.20 × 84,917,908.80
  4. Step 4: Simplify right side
    87,437,332.80x = 11,137,493,178,638,472
  5. Step 5: Solve for x
    x = 11,137,493,178,638,472/87,437,332.80
  6. Step 6: Final answer
    x = 127,376,863.20

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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.