Home / 21,451,497.30-32,189,687.55-7,989,686.10

Finding the Fourth Proportional to 21,451,497.30, 32,189,687.55 and 7,989,686.10

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Solution

The fourth proportional to 21,451,497.30, 32,189,687.55 and 7,989,686.10 is: 11,989,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,451,497.30 : 32,189,687.55 = 7,989,686.10 : x
  2. Step 2: Convert to fraction form
    21,451,497.30/32,189,687.55 = 7,989,686.10/x
  3. Step 3: Cross multiply
    21,451,497.30x = 32,189,687.55 × 7,989,686.10
  4. Step 4: Simplify right side
    21,451,497.30x = 257,185,499,181,578.06
  5. Step 5: Solve for x
    x = 257,185,499,181,578.06/21,451,497.30
  6. Step 6: Final answer
    x = 11,989,163.07

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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.