Home / 21,256,456.41-31,889,744.02-6,879,524.22

Finding the Fourth Proportional to 21,256,456.41, 31,889,744.02 and 6,879,524.22

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Solution

The fourth proportional to 21,256,456.41, 31,889,744.02 and 6,879,524.22 is: 10,320,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256,456.41 : 31,889,744.02 = 6,879,524.22 : x
  2. Step 2: Convert to fraction form
    21,256,456.41/31,889,744.02 = 6,879,524.22/x
  3. Step 3: Cross multiply
    21,256,456.41x = 31,889,744.02 × 6,879,524.22
  4. Step 4: Simplify right side
    21,256,456.41x = 219,386,266,363,789.56
  5. Step 5: Solve for x
    x = 219,386,266,363,789.56/21,256,456.41
  6. Step 6: Final answer
    x = 10,320,923.78

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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.