Home / 91,906,922.70-137,718,666.45-79,719,209.10

Finding the Fourth Proportional to 91,906,922.70, 137,718,666.45 and 79,719,209.10

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Solution

The fourth proportional to 91,906,922.70, 137,718,666.45 and 79,719,209.10 is: 119,455,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,906,922.70 : 137,718,666.45 = 79,719,209.10 : x
  2. Step 2: Convert to fraction form
    91,906,922.70/137,718,666.45 = 79,719,209.10/x
  3. Step 3: Cross multiply
    91,906,922.70x = 137,718,666.45 × 79,719,209.10
  4. Step 4: Simplify right side
    91,906,922.70x = 10,978,823,167,700,702
  5. Step 5: Solve for x
    x = 10,978,823,167,700,702/91,906,922.70
  6. Step 6: Final answer
    x = 119,455,889.12

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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.