Home / 11,515,309.52-15,891,136.38-7,385,327.89

Finding the Fourth Proportional to 11,515,309.52, 15,891,136.38 and 7,385,327.89

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Solution

The fourth proportional to 11,515,309.52, 15,891,136.38 and 7,385,327.89 is: 10,191,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515,309.52 : 15,891,136.38 = 7,385,327.89 : x
  2. Step 2: Convert to fraction form
    11,515,309.52/15,891,136.38 = 7,385,327.89/x
  3. Step 3: Cross multiply
    11,515,309.52x = 15,891,136.38 × 7,385,327.89
  4. Step 4: Simplify right side
    11,515,309.52x = 117,361,252,671,279.81
  5. Step 5: Solve for x
    x = 117,361,252,671,279.81/11,515,309.52
  6. Step 6: Final answer
    x = 10,191,758.42

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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.