Home / 15,027,621.72-20,738,157.89-8,152,103.79

Finding the Fourth Proportional to 15,027,621.72, 20,738,157.89 and 8,152,103.79

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Solution

The fourth proportional to 15,027,621.72, 20,738,157.89 and 8,152,103.79 is: 11,249,924.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,027,621.72 : 20,738,157.89 = 8,152,103.79 : x
  2. Step 2: Convert to fraction form
    15,027,621.72/20,738,157.89 = 8,152,103.79/x
  3. Step 3: Cross multiply
    15,027,621.72x = 20,738,157.89 × 8,152,103.79
  4. Step 4: Simplify right side
    15,027,621.72x = 169,059,615,491,926.91
  5. Step 5: Solve for x
    x = 169,059,615,491,926.91/15,027,621.72
  6. Step 6: Final answer
    x = 11,249,924.88

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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.