Home / 1,215,469,418.43-1,676,700,778.12-739,305,423.79

Finding the Fourth Proportional to 1,215,469,418.43, 1,676,700,778.12 and 739,305,423.79

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Solution

The fourth proportional to 1,215,469,418.43, 1,676,700,778.12 and 739,305,423.79 is: 1,019,847,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,469,418.43 : 1,676,700,778.12 = 739,305,423.79 : x
  2. Step 2: Convert to fraction form
    1,215,469,418.43/1,676,700,778.12 = 739,305,423.79/x
  3. Step 3: Cross multiply
    1,215,469,418.43x = 1,676,700,778.12 × 739,305,423.79
  4. Step 4: Simplify right side
    1,215,469,418.43x = 1,239,593,979,337,029,120
  5. Step 5: Solve for x
    x = 1,239,593,979,337,029,120/1,215,469,418.43
  6. Step 6: Final answer
    x = 1,019,847,937.38

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Half scale
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Double scale
Find fourth proportional to 1,215,469,419.43, 1,676,700,779.50 and 739,305,424.79
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1.5x scale

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.