Home / 19,129,213.60-28,693,820.40-18,385,196.20

Finding the Fourth Proportional to 19,129,213.60, 28,693,820.40 and 18,385,196.20

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Solution

The fourth proportional to 19,129,213.60, 28,693,820.40 and 18,385,196.20 is: 27,577,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129,213.60 : 28,693,820.40 = 18,385,196.20 : x
  2. Step 2: Convert to fraction form
    19,129,213.60/28,693,820.40 = 18,385,196.20/x
  3. Step 3: Cross multiply
    19,129,213.60x = 28,693,820.40 × 18,385,196.20
  4. Step 4: Simplify right side
    19,129,213.60x = 527,541,517,781,562.44
  5. Step 5: Solve for x
    x = 527,541,517,781,562.44/19,129,213.60
  6. Step 6: Final answer
    x = 27,577,794.30

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1.5x scale

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.