Home / 21,025,335-31,541,414.22-8,238,908.28

Finding the Fourth Proportional to 21,025,335, 31,541,414.22 and 8,238,908.28

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Solution

The fourth proportional to 21,025,335, 31,541,414.22 and 8,238,908.28 is: 12,359,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025,335 : 31,541,414.22 = 8,238,908.28 : x
  2. Step 2: Convert to fraction form
    21,025,335/31,541,414.22 = 8,238,908.28/x
  3. Step 3: Cross multiply
    21,025,335x = 31,541,414.22 × 8,238,908.28
  4. Step 4: Simplify right side
    21,025,335x = 259,866,818,780,067.75
  5. Step 5: Solve for x
    x = 259,866,818,780,067.75/21,025,335
  6. Step 6: Final answer
    x = 12,359,699.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.