Home / 14,995,695.12-20,694,157.80-8,120,177.76

Finding the Fourth Proportional to 14,995,695.12, 20,694,157.80 and 8,120,177.76

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Solution

The fourth proportional to 14,995,695.12, 20,694,157.80 and 8,120,177.76 is: 11,205,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995,695.12 : 20,694,157.80 = 8,120,177.76 : x
  2. Step 2: Convert to fraction form
    14,995,695.12/20,694,157.80 = 8,120,177.76/x
  3. Step 3: Cross multiply
    14,995,695.12x = 20,694,157.80 × 8,120,177.76
  4. Step 4: Simplify right side
    14,995,695.12x = 168,040,239,929,490.53
  5. Step 5: Solve for x
    x = 168,040,239,929,490.53/14,995,695.12
  6. Step 6: Final answer
    x = 11,205,898.67

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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.