Home / 2,690,957,801.20-4,036,436,701.80-1,965,363,689.20

Finding the Fourth Proportional to 2,690,957,801.20, 4,036,436,701.80 and 1,965,363,689.20

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Solution

The fourth proportional to 2,690,957,801.20, 4,036,436,701.80 and 1,965,363,689.20 is: 2,948,045,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690,957,801.20 : 4,036,436,701.80 = 1,965,363,689.20 : x
  2. Step 2: Convert to fraction form
    2,690,957,801.20/4,036,436,701.80 = 1,965,363,689.20/x
  3. Step 3: Cross multiply
    2,690,957,801.20x = 4,036,436,701.80 × 1,965,363,689.20
  4. Step 4: Simplify right side
    2,690,957,801.20x = 7,933,066,127,471,929,344
  5. Step 5: Solve for x
    x = 7,933,066,127,471,929,344/2,690,957,801.20
  6. Step 6: Final answer
    x = 2,948,045,533.80

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Double scale
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Similar ratio
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1.5x scale

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.