Home / 91,856,114.30-137,784,171.45-91,218,385.10

Finding the Fourth Proportional to 91,856,114.30, 137,784,171.45 and 91,218,385.10

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Solution

The fourth proportional to 91,856,114.30, 137,784,171.45 and 91,218,385.10 is: 136,827,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,856,114.30 : 137,784,171.45 = 91,218,385.10 : x
  2. Step 2: Convert to fraction form
    91,856,114.30/137,784,171.45 = 91,218,385.10/x
  3. Step 3: Cross multiply
    91,856,114.30x = 137,784,171.45 × 91,218,385.10
  4. Step 4: Simplify right side
    91,856,114.30x = 12,568,449,612,010,524
  5. Step 5: Solve for x
    x = 12,568,449,612,010,524/91,856,114.30
  6. Step 6: Final answer
    x = 136,827,577.65

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Double scale
Find fourth proportional to 91,856,115.30, 137,784,172.95 and 91,218,386.10
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.