Home / 21,275,653.50-31,913,480.97-5,319,301.50

Finding the Fourth Proportional to 21,275,653.50, 31,913,480.97 and 5,319,301.50

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Solution

The fourth proportional to 21,275,653.50, 31,913,480.97 and 5,319,301.50 is: 7,978,952.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,653.50 : 31,913,480.97 = 5,319,301.50 : x
  2. Step 2: Convert to fraction form
    21,275,653.50/31,913,480.97 = 5,319,301.50/x
  3. Step 3: Cross multiply
    21,275,653.50x = 31,913,480.97 × 5,319,301.50
  4. Step 4: Simplify right side
    21,275,653.50x = 169,757,427,193,942.44
  5. Step 5: Solve for x
    x = 169,757,427,193,942.44/21,275,653.50
  6. Step 6: Final answer
    x = 7,978,952.43

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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.