Home / 78,732,115.55-118,098,173.33-72,035,958.95

Finding the Fourth Proportional to 78,732,115.55, 118,098,173.33 and 72,035,958.95

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Solution

The fourth proportional to 78,732,115.55, 118,098,173.33 and 72,035,958.95 is: 108,053,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,115.55 : 118,098,173.33 = 72,035,958.95 : x
  2. Step 2: Convert to fraction form
    78,732,115.55/118,098,173.33 = 72,035,958.95/x
  3. Step 3: Cross multiply
    78,732,115.55x = 118,098,173.33 × 72,035,958.95
  4. Step 4: Simplify right side
    78,732,115.55x = 8,507,315,165,709,686
  5. Step 5: Solve for x
    x = 8,507,315,165,709,686/78,732,115.55
  6. Step 6: Final answer
    x = 108,053,938.43

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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.