Home / 21,646,711.32-29,872,395.90-12,479,273.88

Finding the Fourth Proportional to 21,646,711.32, 29,872,395.90 and 12,479,273.88

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Solution

The fourth proportional to 21,646,711.32, 29,872,395.90 and 12,479,273.88 is: 17,221,360.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,646,711.32 : 29,872,395.90 = 12,479,273.88 : x
  2. Step 2: Convert to fraction form
    21,646,711.32/29,872,395.90 = 12,479,273.88/x
  3. Step 3: Cross multiply
    21,646,711.32x = 29,872,395.90 × 12,479,273.88
  4. Step 4: Simplify right side
    21,646,711.32x = 372,785,809,887,889.12
  5. Step 5: Solve for x
    x = 372,785,809,887,889.12/21,646,711.32
  6. Step 6: Final answer
    x = 17,221,360.07

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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.