Home / 13,411,743-20,120,613.12-4,892,079.17

Finding the Fourth Proportional to 13,411,743, 20,120,613.12 and 4,892,079.17

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Solution

The fourth proportional to 13,411,743, 20,120,613.12 and 4,892,079.17 is: 7,339,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411,743 : 20,120,613.12 = 4,892,079.17 : x
  2. Step 2: Convert to fraction form
    13,411,743/20,120,613.12 = 4,892,079.17/x
  3. Step 3: Cross multiply
    13,411,743x = 20,120,613.12 × 4,892,079.17
  4. Step 4: Simplify right side
    13,411,743x = 98,431,632,231,377.66
  5. Step 5: Solve for x
    x = 98,431,632,231,377.66/13,411,743
  6. Step 6: Final answer
    x = 7,339,212.53

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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.