Home / 15,806,805.18-21,811,722.03-8,929,959.18

Finding the Fourth Proportional to 15,806,805.18, 21,811,722.03 and 8,929,959.18

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Solution

The fourth proportional to 15,806,805.18, 21,811,722.03 and 8,929,959.18 is: 12,322,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806,805.18 : 21,811,722.03 = 8,929,959.18 : x
  2. Step 2: Convert to fraction form
    15,806,805.18/21,811,722.03 = 8,929,959.18/x
  3. Step 3: Cross multiply
    15,806,805.18x = 21,811,722.03 × 8,929,959.18
  4. Step 4: Simplify right side
    15,806,805.18x = 194,777,787,373,406.75
  5. Step 5: Solve for x
    x = 194,777,787,373,406.75/15,806,805.18
  6. Step 6: Final answer
    x = 12,322,400.71

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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.