Home / 71,542,643.20-107,313,964.80-17,689,955.20

Finding the Fourth Proportional to 71,542,643.20, 107,313,964.80 and 17,689,955.20

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Solution

The fourth proportional to 71,542,643.20, 107,313,964.80 and 17,689,955.20 is: 26,534,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,542,643.20 : 107,313,964.80 = 17,689,955.20 : x
  2. Step 2: Convert to fraction form
    71,542,643.20/107,313,964.80 = 17,689,955.20/x
  3. Step 3: Cross multiply
    71,542,643.20x = 107,313,964.80 × 17,689,955.20
  4. Step 4: Simplify right side
    71,542,643.20x = 1,898,379,229,646,376.75
  5. Step 5: Solve for x
    x = 1,898,379,229,646,376.75/71,542,643.20
  6. Step 6: Final answer
    x = 26,534,932.80

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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.