Home / 20,373,442.65-30,561,640.20-12,268,967.40

Finding the Fourth Proportional to 20,373,442.65, 30,561,640.20 and 12,268,967.40

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Solution

The fourth proportional to 20,373,442.65, 30,561,640.20 and 12,268,967.40 is: 18,404,340.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,442.65 : 30,561,640.20 = 12,268,967.40 : x
  2. Step 2: Convert to fraction form
    20,373,442.65/30,561,640.20 = 12,268,967.40/x
  3. Step 3: Cross multiply
    20,373,442.65x = 30,561,640.20 × 12,268,967.40
  4. Step 4: Simplify right side
    20,373,442.65x = 374,959,767,304,329.50
  5. Step 5: Solve for x
    x = 374,959,767,304,329.50/20,373,442.65
  6. Step 6: Final answer
    x = 18,404,340.09

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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.