Home / 107,808,082.20-161,712,123.30-81,980,049.60

Finding the Fourth Proportional to 107,808,082.20, 161,712,123.30 and 81,980,049.60

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Solution

The fourth proportional to 107,808,082.20, 161,712,123.30 and 81,980,049.60 is: 122,970,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,808,082.20 : 161,712,123.30 = 81,980,049.60 : x
  2. Step 2: Convert to fraction form
    107,808,082.20/161,712,123.30 = 81,980,049.60/x
  3. Step 3: Cross multiply
    107,808,082.20x = 161,712,123.30 × 81,980,049.60
  4. Step 4: Simplify right side
    107,808,082.20x = 13,257,167,889,055,316
  5. Step 5: Solve for x
    x = 13,257,167,889,055,316/107,808,082.20
  6. Step 6: Final answer
    x = 122,970,074.40

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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.