Home / 1,982,002,861.38-2,735,215,786.98-1,077,811,678.70

Finding the Fourth Proportional to 1,982,002,861.38, 2,735,215,786.98 and 1,077,811,678.70

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Solution

The fourth proportional to 1,982,002,861.38, 2,735,215,786.98 and 1,077,811,678.70 is: 1,487,408,306.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982,002,861.38 : 2,735,215,786.98 = 1,077,811,678.70 : x
  2. Step 2: Convert to fraction form
    1,982,002,861.38/2,735,215,786.98 = 1,077,811,678.70/x
  3. Step 3: Cross multiply
    1,982,002,861.38x = 2,735,215,786.98 × 1,077,811,678.70
  4. Step 4: Simplify right side
    1,982,002,861.38x = 2,948,047,518,971,655,680
  5. Step 5: Solve for x
    x = 2,948,047,518,971,655,680/1,982,002,861.38
  6. Step 6: Final answer
    x = 1,487,408,306.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.