Home / 20,157,843.60-30,213,145.80-15,103,249.20

Finding the Fourth Proportional to 20,157,843.60, 30,213,145.80 and 15,103,249.20

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Solution

The fourth proportional to 20,157,843.60, 30,213,145.80 and 15,103,249.20 is: 22,637,176.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,843.60 : 30,213,145.80 = 15,103,249.20 : x
  2. Step 2: Convert to fraction form
    20,157,843.60/30,213,145.80 = 15,103,249.20/x
  3. Step 3: Cross multiply
    20,157,843.60x = 30,213,145.80 × 15,103,249.20
  4. Step 4: Simplify right side
    20,157,843.60x = 456,316,670,133,333.38
  5. Step 5: Solve for x
    x = 456,316,670,133,333.38/20,157,843.60
  6. Step 6: Final answer
    x = 22,637,176.83

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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.