Home / 125,207,999.20-187,811,998.80-102,514,520.80

Finding the Fourth Proportional to 125,207,999.20, 187,811,998.80 and 102,514,520.80

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Solution

The fourth proportional to 125,207,999.20, 187,811,998.80 and 102,514,520.80 is: 153,771,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,207,999.20 : 187,811,998.80 = 102,514,520.80 : x
  2. Step 2: Convert to fraction form
    125,207,999.20/187,811,998.80 = 102,514,520.80/x
  3. Step 3: Cross multiply
    125,207,999.20x = 187,811,998.80 × 102,514,520.80
  4. Step 4: Simplify right side
    125,207,999.20x = 19,253,457,057,472,176
  5. Step 5: Solve for x
    x = 19,253,457,057,472,176/125,207,999.20
  6. Step 6: Final answer
    x = 153,771,781.20

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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.