Home / 78,581,010.60-117,871,515.90-59,449,134.60

Finding the Fourth Proportional to 78,581,010.60, 117,871,515.90 and 59,449,134.60

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Solution

The fourth proportional to 78,581,010.60, 117,871,515.90 and 59,449,134.60 is: 89,173,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,581,010.60 : 117,871,515.90 = 59,449,134.60 : x
  2. Step 2: Convert to fraction form
    78,581,010.60/117,871,515.90 = 59,449,134.60/x
  3. Step 3: Cross multiply
    78,581,010.60x = 117,871,515.90 × 59,449,134.60
  4. Step 4: Simplify right side
    78,581,010.60x = 7,007,359,614,245,141
  5. Step 5: Solve for x
    x = 7,007,359,614,245,141/78,581,010.60
  6. Step 6: Final answer
    x = 89,173,701.90

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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.