Home / 28,083,609.20-42,156,906.60-21,722,063.60

Finding the Fourth Proportional to 28,083,609.20, 42,156,906.60 and 21,722,063.60

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Solution

The fourth proportional to 28,083,609.20, 42,156,906.60 and 21,722,063.60 is: 32,607,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,609.20 : 42,156,906.60 = 21,722,063.60 : x
  2. Step 2: Convert to fraction form
    28,083,609.20/42,156,906.60 = 21,722,063.60/x
  3. Step 3: Cross multiply
    28,083,609.20x = 42,156,906.60 × 21,722,063.60
  4. Step 4: Simplify right side
    28,083,609.20x = 915,735,006,344,459.88
  5. Step 5: Solve for x
    x = 915,735,006,344,459.88/28,083,609.20
  6. Step 6: Final answer
    x = 32,607,454.40

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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.