Home / 21,319,721.56-31,993,754.13-9,961,055.92

Finding the Fourth Proportional to 21,319,721.56, 31,993,754.13 and 9,961,055.92

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Solution

The fourth proportional to 21,319,721.56, 31,993,754.13 and 9,961,055.92 is: 14,948,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,319,721.56 : 31,993,754.13 = 9,961,055.92 : x
  2. Step 2: Convert to fraction form
    21,319,721.56/31,993,754.13 = 9,961,055.92/x
  3. Step 3: Cross multiply
    21,319,721.56x = 31,993,754.13 × 9,961,055.92
  4. Step 4: Simplify right side
    21,319,721.56x = 318,691,573,979,660.94
  5. Step 5: Solve for x
    x = 318,691,573,979,660.94/21,319,721.56
  6. Step 6: Final answer
    x = 14,948,205.26

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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.