Home / 129,807,939.24-179,127,859.32-71,059,239.18

Finding the Fourth Proportional to 129,807,939.24, 179,127,859.32 and 71,059,239.18

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Solution

The fourth proportional to 129,807,939.24, 179,127,859.32 and 71,059,239.18 is: 98,057,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,807,939.24 : 179,127,859.32 = 71,059,239.18 : x
  2. Step 2: Convert to fraction form
    129,807,939.24/179,127,859.32 = 71,059,239.18/x
  3. Step 3: Cross multiply
    129,807,939.24x = 179,127,859.32 × 71,059,239.18
  4. Step 4: Simplify right side
    129,807,939.24x = 12,728,689,399,221,272
  5. Step 5: Solve for x
    x = 12,728,689,399,221,272/129,807,939.24
  6. Step 6: Final answer
    x = 98,057,865.13

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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.