Home / 127,854,773.28-176,456,856.24-72,111,628.80

Finding the Fourth Proportional to 127,854,773.28, 176,456,856.24 and 72,111,628.80

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Solution

The fourth proportional to 127,854,773.28, 176,456,856.24 and 72,111,628.80 is: 99,523,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,854,773.28 : 176,456,856.24 = 72,111,628.80 : x
  2. Step 2: Convert to fraction form
    127,854,773.28/176,456,856.24 = 72,111,628.80/x
  3. Step 3: Cross multiply
    127,854,773.28x = 176,456,856.24 × 72,111,628.80
  4. Step 4: Simplify right side
    127,854,773.28x = 12,724,591,316,393,844
  5. Step 5: Solve for x
    x = 12,724,591,316,393,844/127,854,773.28
  6. Step 6: Final answer
    x = 99,523,787.73

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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.