Home / 145,152,230.10-217,747,007.55-72,406,194.90

Finding the Fourth Proportional to 145,152,230.10, 217,747,007.55 and 72,406,194.90

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Solution

The fourth proportional to 145,152,230.10, 217,747,007.55 and 72,406,194.90 is: 108,618,601.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152,230.10 : 217,747,007.55 = 72,406,194.90 : x
  2. Step 2: Convert to fraction form
    145,152,230.10/217,747,007.55 = 72,406,194.90/x
  3. Step 3: Cross multiply
    145,152,230.10x = 217,747,007.55 × 72,406,194.90
  4. Step 4: Simplify right side
    145,152,230.10x = 15,766,232,267,557,074
  5. Step 5: Solve for x
    x = 15,766,232,267,557,074/145,152,230.10
  6. Step 6: Final answer
    x = 108,618,601.70

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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.