Home / 13,182,115.20-19,739,995.20-8,669,961.60

Finding the Fourth Proportional to 13,182,115.20, 19,739,995.20 and 8,669,961.60

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Solution

The fourth proportional to 13,182,115.20, 19,739,995.20 and 8,669,961.60 is: 12,983,121.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182,115.20 : 19,739,995.20 = 8,669,961.60 : x
  2. Step 2: Convert to fraction form
    13,182,115.20/19,739,995.20 = 8,669,961.60/x
  3. Step 3: Cross multiply
    13,182,115.20x = 19,739,995.20 × 8,669,961.60
  4. Step 4: Simplify right side
    13,182,115.20x = 171,145,000,368,184.31
  5. Step 5: Solve for x
    x = 171,145,000,368,184.31/13,182,115.20
  6. Step 6: Final answer
    x = 12,983,121.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.