Home / 42,478,000.40-63,750,178.20-19,761,712.40

Finding the Fourth Proportional to 42,478,000.40, 63,750,178.20 and 19,761,712.40

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Solution

The fourth proportional to 42,478,000.40, 63,750,178.20 and 19,761,712.40 is: 29,658,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,478,000.40 : 63,750,178.20 = 19,761,712.40 : x
  2. Step 2: Convert to fraction form
    42,478,000.40/63,750,178.20 = 19,761,712.40/x
  3. Step 3: Cross multiply
    42,478,000.40x = 63,750,178.20 × 19,761,712.40
  4. Step 4: Simplify right side
    42,478,000.40x = 1,259,812,687,037,149.75
  5. Step 5: Solve for x
    x = 1,259,812,687,037,149.75/42,478,000.40
  6. Step 6: Final answer
    x = 29,658,003.56

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1.5x scale

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.