Home / 78,732,560.55-118,098,840.83-67,253,434.95

Finding the Fourth Proportional to 78,732,560.55, 118,098,840.83 and 67,253,434.95

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Solution

The fourth proportional to 78,732,560.55, 118,098,840.83 and 67,253,434.95 is: 100,880,152.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,560.55 : 118,098,840.83 = 67,253,434.95 : x
  2. Step 2: Convert to fraction form
    78,732,560.55/118,098,840.83 = 67,253,434.95/x
  3. Step 3: Cross multiply
    78,732,560.55x = 118,098,840.83 × 67,253,434.95
  4. Step 4: Simplify right side
    78,732,560.55x = 7,942,552,709,094,542
  5. Step 5: Solve for x
    x = 7,942,552,709,094,542/78,732,560.55
  6. Step 6: Final answer
    x = 100,880,152.43

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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.