Home / 91,856,115.80-137,784,173.70-91,218,386.60

Finding the Fourth Proportional to 91,856,115.80, 137,784,173.70 and 91,218,386.60

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Solution

The fourth proportional to 91,856,115.80, 137,784,173.70 and 91,218,386.60 is: 136,827,579.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,856,115.80 : 137,784,173.70 = 91,218,386.60 : x
  2. Step 2: Convert to fraction form
    91,856,115.80/137,784,173.70 = 91,218,386.60/x
  3. Step 3: Cross multiply
    91,856,115.80x = 137,784,173.70 × 91,218,386.60
  4. Step 4: Simplify right side
    91,856,115.80x = 12,568,450,023,928,150
  5. Step 5: Solve for x
    x = 12,568,450,023,928,150/91,856,115.80
  6. Step 6: Final answer
    x = 136,827,579.90

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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.