Home / 15,817,559.28-21,828,959.64-8,942,331.12

Finding the Fourth Proportional to 15,817,559.28, 21,828,959.64 and 8,942,331.12

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Solution

The fourth proportional to 15,817,559.28, 21,828,959.64 and 8,942,331.12 is: 12,340,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,817,559.28 : 21,828,959.64 = 8,942,331.12 : x
  2. Step 2: Convert to fraction form
    15,817,559.28/21,828,959.64 = 8,942,331.12/x
  3. Step 3: Cross multiply
    15,817,559.28x = 21,828,959.64 × 8,942,331.12
  4. Step 4: Simplify right side
    15,817,559.28x = 195,201,785,105,995.97
  5. Step 5: Solve for x
    x = 195,201,785,105,995.97/15,817,559.28
  6. Step 6: Final answer
    x = 12,340,828.42

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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.