Home / 21,096,739.97-31,646,334.68-8,142,964.01

Finding the Fourth Proportional to 21,096,739.97, 31,646,334.68 and 8,142,964.01

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Solution

The fourth proportional to 21,096,739.97, 31,646,334.68 and 8,142,964.01 is: 12,214,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096,739.97 : 31,646,334.68 = 8,142,964.01 : x
  2. Step 2: Convert to fraction form
    21,096,739.97/31,646,334.68 = 8,142,964.01/x
  3. Step 3: Cross multiply
    21,096,739.97x = 31,646,334.68 × 8,142,964.01
  4. Step 4: Simplify right side
    21,096,739.97x = 257,694,964,148,708.38
  5. Step 5: Solve for x
    x = 257,694,964,148,708.38/21,096,739.97
  6. Step 6: Final answer
    x = 12,214,918.73

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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.