Home / 127,982,995.23-176,621,545.45-72,230,363.13

Finding the Fourth Proportional to 127,982,995.23, 176,621,545.45 and 72,230,363.13

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Solution

The fourth proportional to 127,982,995.23, 176,621,545.45 and 72,230,363.13 is: 99,680,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,982,995.23 : 176,621,545.45 = 72,230,363.13 : x
  2. Step 2: Convert to fraction form
    127,982,995.23/176,621,545.45 = 72,230,363.13/x
  3. Step 3: Cross multiply
    127,982,995.23x = 176,621,545.45 × 72,230,363.13
  4. Step 4: Simplify right side
    127,982,995.23x = 12,757,438,364,435,298
  5. Step 5: Solve for x
    x = 12,757,438,364,435,298/127,982,995.23
  6. Step 6: Final answer
    x = 99,680,729.78

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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.