Home / 15,028,872.40-20,739,851.40-8,153,352.64

Finding the Fourth Proportional to 15,028,872.40, 20,739,851.40 and 8,153,352.64

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Solution

The fourth proportional to 15,028,872.40, 20,739,851.40 and 8,153,352.64 is: 11,251,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028,872.40 : 20,739,851.40 = 8,153,352.64 : x
  2. Step 2: Convert to fraction form
    15,028,872.40/20,739,851.40 = 8,153,352.64/x
  3. Step 3: Cross multiply
    15,028,872.40x = 20,739,851.40 × 8,153,352.64
  4. Step 4: Simplify right side
    15,028,872.40x = 169,099,322,165,397.69
  5. Step 5: Solve for x
    x = 169,099,322,165,397.69/15,028,872.40
  6. Step 6: Final answer
    x = 11,251,630.71

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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.