Home / 138,757,253.92-208,055,205.18-52,502,312.92

Finding the Fourth Proportional to 138,757,253.92, 208,055,205.18 and 52,502,312.92

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Solution

The fourth proportional to 138,757,253.92, 208,055,205.18 and 52,502,312.92 is: 78,722,943.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,757,253.92 : 208,055,205.18 = 52,502,312.92 : x
  2. Step 2: Convert to fraction form
    138,757,253.92/208,055,205.18 = 52,502,312.92/x
  3. Step 3: Cross multiply
    138,757,253.92x = 208,055,205.18 × 52,502,312.92
  4. Step 4: Simplify right side
    138,757,253.92x = 10,923,379,486,995,166
  5. Step 5: Solve for x
    x = 10,923,379,486,995,166/138,757,253.92
  6. Step 6: Final answer
    x = 78,722,943.69

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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.