Home / 15,521,227.89-21,419,315.73-8,456,785.98

Finding the Fourth Proportional to 15,521,227.89, 21,419,315.73 and 8,456,785.98

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Solution

The fourth proportional to 15,521,227.89, 21,419,315.73 and 8,456,785.98 is: 11,670,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521,227.89 : 21,419,315.73 = 8,456,785.98 : x
  2. Step 2: Convert to fraction form
    15,521,227.89/21,419,315.73 = 8,456,785.98/x
  3. Step 3: Cross multiply
    15,521,227.89x = 21,419,315.73 × 8,456,785.98
  4. Step 4: Simplify right side
    15,521,227.89x = 181,138,568,966,657.47
  5. Step 5: Solve for x
    x = 181,138,568,966,657.47/15,521,227.89
  6. Step 6: Final answer
    x = 11,670,376.23

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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.