Home / 13,309,209.30-18,366,764.19-7,197,637.80

Finding the Fourth Proportional to 13,309,209.30, 18,366,764.19 and 7,197,637.80

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Solution

The fourth proportional to 13,309,209.30, 18,366,764.19 and 7,197,637.80 is: 9,932,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,209.30 : 18,366,764.19 = 7,197,637.80 : x
  2. Step 2: Convert to fraction form
    13,309,209.30/18,366,764.19 = 7,197,637.80/x
  3. Step 3: Cross multiply
    13,309,209.30x = 18,366,764.19 × 7,197,637.80
  4. Step 4: Simplify right side
    13,309,209.30x = 132,197,316,239,514.61
  5. Step 5: Solve for x
    x = 132,197,316,239,514.61/13,309,209.30
  6. Step 6: Final answer
    x = 9,932,770.10

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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.