Home / 15,491,840.42-21,376,142.24-8,615,402.66

Finding the Fourth Proportional to 15,491,840.42, 21,376,142.24 and 8,615,402.66

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Solution

The fourth proportional to 15,491,840.42, 21,376,142.24 and 8,615,402.66 is: 11,887,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491,840.42 : 21,376,142.24 = 8,615,402.66 : x
  2. Step 2: Convert to fraction form
    15,491,840.42/21,376,142.24 = 8,615,402.66/x
  3. Step 3: Cross multiply
    15,491,840.42x = 21,376,142.24 × 8,615,402.66
  4. Step 4: Simplify right side
    15,491,840.42x = 184,164,072,715,034.34
  5. Step 5: Solve for x
    x = 184,164,072,715,034.34/15,491,840.42
  6. Step 6: Final answer
    x = 11,887,811.11

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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.