Home / 42,532,853.70-63,799,280.55-20,977,781.70

Finding the Fourth Proportional to 42,532,853.70, 63,799,280.55 and 20,977,781.70

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Solution

The fourth proportional to 42,532,853.70, 63,799,280.55 and 20,977,781.70 is: 31,466,672.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,532,853.70 : 63,799,280.55 = 20,977,781.70 : x
  2. Step 2: Convert to fraction form
    42,532,853.70/63,799,280.55 = 20,977,781.70/x
  3. Step 3: Cross multiply
    42,532,853.70x = 63,799,280.55 × 20,977,781.70
  4. Step 4: Simplify right side
    42,532,853.70x = 1,338,367,379,994,955.75
  5. Step 5: Solve for x
    x = 1,338,367,379,994,955.75/42,532,853.70
  6. Step 6: Final answer
    x = 31,466,672.55

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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.