Home / 20,195,173.68-30,270,321.72-15,387,010.80

Finding the Fourth Proportional to 20,195,173.68, 30,270,321.72 and 15,387,010.80

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Solution

The fourth proportional to 20,195,173.68, 30,270,321.72 and 15,387,010.80 is: 23,063,419.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195,173.68 : 30,270,321.72 = 15,387,010.80 : x
  2. Step 2: Convert to fraction form
    20,195,173.68/30,270,321.72 = 15,387,010.80/x
  3. Step 3: Cross multiply
    20,195,173.68x = 30,270,321.72 × 15,387,010.80
  4. Step 4: Simplify right side
    20,195,173.68x = 465,769,767,225,114.56
  5. Step 5: Solve for x
    x = 465,769,767,225,114.56/20,195,173.68
  6. Step 6: Final answer
    x = 23,063,419.74

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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.