Home / 143,584,514.76-198,143,939.10-87,825,839.22

Finding the Fourth Proportional to 143,584,514.76, 198,143,939.10 and 87,825,839.22

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Solution

The fourth proportional to 143,584,514.76, 198,143,939.10 and 87,825,839.22 is: 121,198,011.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,584,514.76 : 198,143,939.10 = 87,825,839.22 : x
  2. Step 2: Convert to fraction form
    143,584,514.76/198,143,939.10 = 87,825,839.22/x
  3. Step 3: Cross multiply
    143,584,514.76x = 198,143,939.10 × 87,825,839.22
  4. Step 4: Simplify right side
    143,584,514.76x = 17,402,157,737,814,070
  5. Step 5: Solve for x
    x = 17,402,157,737,814,070/143,584,514.76
  6. Step 6: Final answer
    x = 121,198,011.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.