Home / 18,719,830.08-28,059,136.32-12,240,233.28

Finding the Fourth Proportional to 18,719,830.08, 28,059,136.32 and 12,240,233.28

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Solution

The fourth proportional to 18,719,830.08, 28,059,136.32 and 12,240,233.28 is: 18,346,874.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719,830.08 : 28,059,136.32 = 12,240,233.28 : x
  2. Step 2: Convert to fraction form
    18,719,830.08/28,059,136.32 = 12,240,233.28/x
  3. Step 3: Cross multiply
    18,719,830.08x = 28,059,136.32 × 12,240,233.28
  4. Step 4: Simplify right side
    18,719,830.08x = 343,450,374,192,120.69
  5. Step 5: Solve for x
    x = 343,450,374,192,120.69/18,719,830.08
  6. Step 6: Final answer
    x = 18,346,874.56

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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.