Home / 20,149,405.80-30,224,108.70-11,625,354.60

Finding the Fourth Proportional to 20,149,405.80, 30,224,108.70 and 11,625,354.60

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Solution

The fourth proportional to 20,149,405.80, 30,224,108.70 and 11,625,354.60 is: 17,438,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149,405.80 : 30,224,108.70 = 11,625,354.60 : x
  2. Step 2: Convert to fraction form
    20,149,405.80/30,224,108.70 = 11,625,354.60/x
  3. Step 3: Cross multiply
    20,149,405.80x = 30,224,108.70 × 11,625,354.60
  4. Step 4: Simplify right side
    20,149,405.80x = 351,365,981,106,445
  5. Step 5: Solve for x
    x = 351,365,981,106,445/20,149,405.80
  6. Step 6: Final answer
    x = 17,438,031.90

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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.