Home / 15,504,372.91-21,397,269.02-8,978,116.14

Finding the Fourth Proportional to 15,504,372.91, 21,397,269.02 and 8,978,116.14

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Solution

The fourth proportional to 15,504,372.91, 21,397,269.02 and 8,978,116.14 is: 12,390,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504,372.91 : 21,397,269.02 = 8,978,116.14 : x
  2. Step 2: Convert to fraction form
    15,504,372.91/21,397,269.02 = 8,978,116.14/x
  3. Step 3: Cross multiply
    15,504,372.91x = 21,397,269.02 × 8,978,116.14
  4. Step 4: Simplify right side
    15,504,372.91x = 192,107,166,295,493.41
  5. Step 5: Solve for x
    x = 192,107,166,295,493.41/15,504,372.91
  6. Step 6: Final answer
    x = 12,390,515.08

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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.