Home / 42,487,167.60-63,730,654.20-18,210,353.04

Finding the Fourth Proportional to 42,487,167.60, 63,730,654.20 and 18,210,353.04

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Solution

The fourth proportional to 42,487,167.60, 63,730,654.20 and 18,210,353.04 is: 27,315,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,487,167.60 : 63,730,654.20 = 18,210,353.04 : x
  2. Step 2: Convert to fraction form
    42,487,167.60/63,730,654.20 = 18,210,353.04/x
  3. Step 3: Cross multiply
    42,487,167.60x = 63,730,654.20 × 18,210,353.04
  4. Step 4: Simplify right side
    42,487,167.60x = 1,160,557,712,452,158.75
  5. Step 5: Solve for x
    x = 1,160,557,712,452,158.75/42,487,167.60
  6. Step 6: Final answer
    x = 27,315,487.90

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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.