Home / 20,951,172.16-31,428,086.40-6,574,806.72

Finding the Fourth Proportional to 20,951,172.16, 31,428,086.40 and 6,574,806.72

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Solution

The fourth proportional to 20,951,172.16, 31,428,086.40 and 6,574,806.72 is: 9,862,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951,172.16 : 31,428,086.40 = 6,574,806.72 : x
  2. Step 2: Convert to fraction form
    20,951,172.16/31,428,086.40 = 6,574,806.72/x
  3. Step 3: Cross multiply
    20,951,172.16x = 31,428,086.40 × 6,574,806.72
  4. Step 4: Simplify right side
    20,951,172.16x = 206,633,593,659,460.59
  5. Step 5: Solve for x
    x = 206,633,593,659,460.59/20,951,172.16
  6. Step 6: Final answer
    x = 9,862,626.88

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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.