Home / 15,220,278.18-21,004,190.22-8,344,745.46

Finding the Fourth Proportional to 15,220,278.18, 21,004,190.22 and 8,344,745.46

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Solution

The fourth proportional to 15,220,278.18, 21,004,190.22 and 8,344,745.46 is: 11,515,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220,278.18 : 21,004,190.22 = 8,344,745.46 : x
  2. Step 2: Convert to fraction form
    15,220,278.18/21,004,190.22 = 8,344,745.46/x
  3. Step 3: Cross multiply
    15,220,278.18x = 21,004,190.22 × 8,344,745.46
  4. Step 4: Simplify right side
    15,220,278.18x = 175,274,620,979,321.38
  5. Step 5: Solve for x
    x = 175,274,620,979,321.38/15,220,278.18
  6. Step 6: Final answer
    x = 11,515,861.86

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Double scale
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1.5x scale

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.