Home / 20,337,026.32-28,053,381-12,183,540.40

Finding the Fourth Proportional to 20,337,026.32, 28,053,381 and 12,183,540.40

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Solution

The fourth proportional to 20,337,026.32, 28,053,381 and 12,183,540.40 is: 16,806,267.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337,026.32 : 28,053,381 = 12,183,540.40 : x
  2. Step 2: Convert to fraction form
    20,337,026.32/28,053,381 = 12,183,540.40/x
  3. Step 3: Cross multiply
    20,337,026.32x = 28,053,381 × 12,183,540.40
  4. Step 4: Simplify right side
    20,337,026.32x = 341,789,500,770,092.44
  5. Step 5: Solve for x
    x = 341,789,500,770,092.44/20,337,026.32
  6. Step 6: Final answer
    x = 16,806,267.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.