Home / 15,631,138.43-21,571,097.72-8,661,932.42

Finding the Fourth Proportional to 15,631,138.43, 21,571,097.72 and 8,661,932.42

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Solution

The fourth proportional to 15,631,138.43, 21,571,097.72 and 8,661,932.42 is: 11,953,536.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631,138.43 : 21,571,097.72 = 8,661,932.42 : x
  2. Step 2: Convert to fraction form
    15,631,138.43/21,571,097.72 = 8,661,932.42/x
  3. Step 3: Cross multiply
    15,631,138.43x = 21,571,097.72 × 8,661,932.42
  4. Step 4: Simplify right side
    15,631,138.43x = 186,847,390,524,690.91
  5. Step 5: Solve for x
    x = 186,847,390,524,690.91/15,631,138.43
  6. Step 6: Final answer
    x = 11,953,536.93

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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.