Home / 13,291,391.13-18,342,136.13-7,179,819.63

Finding the Fourth Proportional to 13,291,391.13, 18,342,136.13 and 7,179,819.63

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Solution

The fourth proportional to 13,291,391.13, 18,342,136.13 and 7,179,819.63 is: 9,908,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,391.13 : 18,342,136.13 = 7,179,819.63 : x
  2. Step 2: Convert to fraction form
    13,291,391.13/18,342,136.13 = 7,179,819.63/x
  3. Step 3: Cross multiply
    13,291,391.13x = 18,342,136.13 × 7,179,819.63
  4. Step 4: Simplify right side
    13,291,391.13x = 131,693,229,006,407.12
  5. Step 5: Solve for x
    x = 131,693,229,006,407.12/13,291,391.13
  6. Step 6: Final answer
    x = 9,908,159.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.