Home / 20,551,335.35-28,338,120.20-13,097,194.90

Finding the Fourth Proportional to 20,551,335.35, 28,338,120.20 and 13,097,194.90

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Solution

The fourth proportional to 20,551,335.35, 28,338,120.20 and 13,097,194.90 is: 18,059,648.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,335.35 : 28,338,120.20 = 13,097,194.90 : x
  2. Step 2: Convert to fraction form
    20,551,335.35/28,338,120.20 = 13,097,194.90/x
  3. Step 3: Cross multiply
    20,551,335.35x = 28,338,120.20 × 13,097,194.90
  4. Step 4: Simplify right side
    20,551,335.35x = 371,149,883,359,027
  5. Step 5: Solve for x
    x = 371,149,883,359,027/20,551,335.35
  6. Step 6: Final answer
    x = 18,059,648.05

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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.