Home / 132,857,790.30-199,286,685.45-81,573,515.10

Finding the Fourth Proportional to 132,857,790.30, 199,286,685.45 and 81,573,515.10

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Solution

The fourth proportional to 132,857,790.30, 199,286,685.45 and 81,573,515.10 is: 122,360,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,857,790.30 : 199,286,685.45 = 81,573,515.10 : x
  2. Step 2: Convert to fraction form
    132,857,790.30/199,286,685.45 = 81,573,515.10/x
  3. Step 3: Cross multiply
    132,857,790.30x = 199,286,685.45 × 81,573,515.10
  4. Step 4: Simplify right side
    132,857,790.30x = 16,256,515,444,784,524
  5. Step 5: Solve for x
    x = 16,256,515,444,784,524/132,857,790.30
  6. Step 6: Final answer
    x = 122,360,272.65

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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.