Home / 145,474,082.10-218,211,123.15-129,690,284.40

Finding the Fourth Proportional to 145,474,082.10, 218,211,123.15 and 129,690,284.40

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Solution

The fourth proportional to 145,474,082.10, 218,211,123.15 and 129,690,284.40 is: 194,535,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,474,082.10 : 218,211,123.15 = 129,690,284.40 : x
  2. Step 2: Convert to fraction form
    145,474,082.10/218,211,123.15 = 129,690,284.40/x
  3. Step 3: Cross multiply
    145,474,082.10x = 218,211,123.15 × 129,690,284.40
  4. Step 4: Simplify right side
    145,474,082.10x = 28,299,862,620,566,924
  5. Step 5: Solve for x
    x = 28,299,862,620,566,924/145,474,082.10
  6. Step 6: Final answer
    x = 194,535,426.60

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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.