Home / 127,989,740.28-176,625,727.47-72,246,893.88

Finding the Fourth Proportional to 127,989,740.28, 176,625,727.47 and 72,246,893.88

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Solution

The fourth proportional to 127,989,740.28, 176,625,727.47 and 72,246,893.88 is: 99,700,649.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,989,740.28 : 176,625,727.47 = 72,246,893.88 : x
  2. Step 2: Convert to fraction form
    127,989,740.28/176,625,727.47 = 72,246,893.88/x
  3. Step 3: Cross multiply
    127,989,740.28x = 176,625,727.47 × 72,246,893.88
  4. Step 4: Simplify right side
    127,989,740.28x = 12,760,660,189,002,890
  5. Step 5: Solve for x
    x = 12,760,660,189,002,890/127,989,740.28
  6. Step 6: Final answer
    x = 99,700,649.14

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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.