Home / 20,229,840.90-30,344,761.35-20,103,869.70

Finding the Fourth Proportional to 20,229,840.90, 30,344,761.35 and 20,103,869.70

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Solution

The fourth proportional to 20,229,840.90, 30,344,761.35 and 20,103,869.70 is: 30,155,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229,840.90 : 30,344,761.35 = 20,103,869.70 : x
  2. Step 2: Convert to fraction form
    20,229,840.90/30,344,761.35 = 20,103,869.70/x
  3. Step 3: Cross multiply
    20,229,840.90x = 30,344,761.35 × 20,103,869.70
  4. Step 4: Simplify right side
    20,229,840.90x = 610,047,128,257,996.12
  5. Step 5: Solve for x
    x = 610,047,128,257,996.12/20,229,840.90
  6. Step 6: Final answer
    x = 30,155,804.55

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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.