Home / 42,487,168.60-63,730,655.70-18,210,354.04

Finding the Fourth Proportional to 42,487,168.60, 63,730,655.70 and 18,210,354.04

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Solution

The fourth proportional to 42,487,168.60, 63,730,655.70 and 18,210,354.04 is: 27,315,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,487,168.60 : 63,730,655.70 = 18,210,354.04 : x
  2. Step 2: Convert to fraction form
    42,487,168.60/63,730,655.70 = 18,210,354.04/x
  3. Step 3: Cross multiply
    42,487,168.60x = 63,730,655.70 × 18,210,354.04
  4. Step 4: Simplify right side
    42,487,168.60x = 1,160,557,803,498,344
  5. Step 5: Solve for x
    x = 1,160,557,803,498,344/42,487,168.60
  6. Step 6: Final answer
    x = 27,315,489.40

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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.