Home / 15,631,138.31-21,571,097.49-8,661,932.28

Finding the Fourth Proportional to 15,631,138.31, 21,571,097.49 and 8,661,932.28

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Solution

The fourth proportional to 15,631,138.31, 21,571,097.49 and 8,661,932.28 is: 11,953,536.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631,138.31 : 21,571,097.49 = 8,661,932.28 : x
  2. Step 2: Convert to fraction form
    15,631,138.31/21,571,097.49 = 8,661,932.28/x
  3. Step 3: Cross multiply
    15,631,138.31x = 21,571,097.49 × 8,661,932.28
  4. Step 4: Simplify right side
    15,631,138.31x = 186,847,385,663,657.94
  5. Step 5: Solve for x
    x = 186,847,385,663,657.94/15,631,138.31
  6. Step 6: Final answer
    x = 11,953,536.72

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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.