Home / 2,781,428,117.70-4,172,142,176.55-711,040,269.90

Finding the Fourth Proportional to 2,781,428,117.70, 4,172,142,176.55 and 711,040,269.90

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Solution

The fourth proportional to 2,781,428,117.70, 4,172,142,176.55 and 711,040,269.90 is: 1,066,560,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,428,117.70 : 4,172,142,176.55 = 711,040,269.90 : x
  2. Step 2: Convert to fraction form
    2,781,428,117.70/4,172,142,176.55 = 711,040,269.90/x
  3. Step 3: Cross multiply
    2,781,428,117.70x = 4,172,142,176.55 × 711,040,269.90
  4. Step 4: Simplify right side
    2,781,428,117.70x = 2,966,561,099,275,285,504
  5. Step 5: Solve for x
    x = 2,966,561,099,275,285,504/2,781,428,117.70
  6. Step 6: Final answer
    x = 1,066,560,404.85

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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.