Home / 82,912,073.28-124,384,050.70-31,790,105.36

Finding the Fourth Proportional to 82,912,073.28, 124,384,050.70 and 31,790,105.36

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Solution

The fourth proportional to 82,912,073.28, 124,384,050.70 and 31,790,105.36 is: 47,691,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,912,073.28 : 124,384,050.70 = 31,790,105.36 : x
  2. Step 2: Convert to fraction form
    82,912,073.28/124,384,050.70 = 31,790,105.36/x
  3. Step 3: Cross multiply
    82,912,073.28x = 124,384,050.70 × 31,790,105.36
  4. Step 4: Simplify right side
    82,912,073.28x = 3,954,182,076,856,582
  5. Step 5: Solve for x
    x = 3,954,182,076,856,582/82,912,073.28
  6. Step 6: Final answer
    x = 47,691,270.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.