Home / 132,991,351.40-199,612,998.30-81,973,015.40

Finding the Fourth Proportional to 132,991,351.40, 199,612,998.30 and 81,973,015.40

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Solution

The fourth proportional to 132,991,351.40, 199,612,998.30 and 81,973,015.40 is: 123,037,169.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,991,351.40 : 199,612,998.30 = 81,973,015.40 : x
  2. Step 2: Convert to fraction form
    132,991,351.40/199,612,998.30 = 81,973,015.40/x
  3. Step 3: Cross multiply
    132,991,351.40x = 199,612,998.30 × 81,973,015.40
  4. Step 4: Simplify right side
    132,991,351.40x = 16,362,879,383,686,076
  5. Step 5: Solve for x
    x = 16,362,879,383,686,076/132,991,351.40
  6. Step 6: Final answer
    x = 123,037,169.04

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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.