Home / 42,658,438.20-63,987,657.30-18,723,910.20

Finding the Fourth Proportional to 42,658,438.20, 63,987,657.30 and 18,723,910.20

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Solution

The fourth proportional to 42,658,438.20, 63,987,657.30 and 18,723,910.20 is: 28,085,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,658,438.20 : 63,987,657.30 = 18,723,910.20 : x
  2. Step 2: Convert to fraction form
    42,658,438.20/63,987,657.30 = 18,723,910.20/x
  3. Step 3: Cross multiply
    42,658,438.20x = 63,987,657.30 × 18,723,910.20
  4. Step 4: Simplify right side
    42,658,438.20x = 1,198,099,149,193,574.25
  5. Step 5: Solve for x
    x = 1,198,099,149,193,574.25/42,658,438.20
  6. Step 6: Final answer
    x = 28,085,865.30

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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.