Home / 280,229,096.66-420,383,760.84-86,156,807.00

Finding the Fourth Proportional to 280,229,096.66, 420,383,760.84 and 86,156,807.00

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Solution

The fourth proportional to 280,229,096.66, 420,383,760.84 and 86,156,807.00 is: 129,247,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,229,096.66 : 420,383,760.84 = 86,156,807.00 : x
  2. Step 2: Convert to fraction form
    280,229,096.66/420,383,760.84 = 86,156,807.00/x
  3. Step 3: Cross multiply
    280,229,096.66x = 420,383,760.84 × 86,156,807.00
  4. Step 4: Simplify right side
    280,229,096.66x = 36,218,922,546,524,120
  5. Step 5: Solve for x
    x = 36,218,922,546,524,120/280,229,096.66
  6. Step 6: Final answer
    x = 129,247,544.17

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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.