Home / 172,542,306.40-258,942,000.66-126,602,886.40

Finding the Fourth Proportional to 172,542,306.40, 258,942,000.66 and 126,602,886.40

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Solution

The fourth proportional to 172,542,306.40, 258,942,000.66 and 126,602,886.40 is: 189,998,646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,542,306.40 : 258,942,000.66 = 126,602,886.40 : x
  2. Step 2: Convert to fraction form
    172,542,306.40/258,942,000.66 = 126,602,886.40/x
  3. Step 3: Cross multiply
    172,542,306.40x = 258,942,000.66 × 126,602,886.40
  4. Step 4: Simplify right side
    172,542,306.40x = 32,782,804,693,746,708
  5. Step 5: Solve for x
    x = 32,782,804,693,746,708/172,542,306.40
  6. Step 6: Final answer
    x = 189,998,646.58

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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.