Home / 21,888,138.20-32,832,207.30-12,818,211.80

Finding the Fourth Proportional to 21,888,138.20, 32,832,207.30 and 12,818,211.80

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Solution

The fourth proportional to 21,888,138.20, 32,832,207.30 and 12,818,211.80 is: 19,227,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,888,138.20 : 32,832,207.30 = 12,818,211.80 : x
  2. Step 2: Convert to fraction form
    21,888,138.20/32,832,207.30 = 12,818,211.80/x
  3. Step 3: Cross multiply
    21,888,138.20x = 32,832,207.30 × 12,818,211.80
  4. Step 4: Simplify right side
    21,888,138.20x = 420,850,187,032,906.19
  5. Step 5: Solve for x
    x = 420,850,187,032,906.19/21,888,138.20
  6. Step 6: Final answer
    x = 19,227,317.70

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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.