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Finding the Fourth Proportional to 12,659,613.10, 18,989,419.88 and 3,074,927.04

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Solution

The fourth proportional to 12,659,613.10, 18,989,419.88 and 3,074,927.04 is: 4,612,390.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659,613.10 : 18,989,419.88 = 3,074,927.04 : x
  2. Step 2: Convert to fraction form
    12,659,613.10/18,989,419.88 = 3,074,927.04/x
  3. Step 3: Cross multiply
    12,659,613.10x = 18,989,419.88 × 3,074,927.04
  4. Step 4: Simplify right side
    12,659,613.10x = 58,391,080,670,612.88
  5. Step 5: Solve for x
    x = 58,391,080,670,612.88/12,659,613.10
  6. Step 6: Final answer
    x = 4,612,390.62

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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.