Home / 81,660,147.30-122,490,220.95-51,427,059.30

Finding the Fourth Proportional to 81,660,147.30, 122,490,220.95 and 51,427,059.30

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Solution

The fourth proportional to 81,660,147.30, 122,490,220.95 and 51,427,059.30 is: 77,140,588.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,660,147.30 : 122,490,220.95 = 51,427,059.30 : x
  2. Step 2: Convert to fraction form
    81,660,147.30/122,490,220.95 = 51,427,059.30/x
  3. Step 3: Cross multiply
    81,660,147.30x = 122,490,220.95 × 51,427,059.30
  4. Step 4: Simplify right side
    81,660,147.30x = 6,299,311,856,465,752
  5. Step 5: Solve for x
    x = 6,299,311,856,465,752/81,660,147.30
  6. Step 6: Final answer
    x = 77,140,588.95

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Similar ratio
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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.