Home / 1,211,248,550.10-1,816,872,825.15-660,250,521.30

Finding the Fourth Proportional to 1,211,248,550.10, 1,816,872,825.15 and 660,250,521.30

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Solution

The fourth proportional to 1,211,248,550.10, 1,816,872,825.15 and 660,250,521.30 is: 990,375,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,248,550.10 : 1,816,872,825.15 = 660,250,521.30 : x
  2. Step 2: Convert to fraction form
    1,211,248,550.10/1,816,872,825.15 = 660,250,521.30/x
  3. Step 3: Cross multiply
    1,211,248,550.10x = 1,816,872,825.15 × 660,250,521.30
  4. Step 4: Simplify right side
    1,211,248,550.10x = 1,199,591,229,941,091,328
  5. Step 5: Solve for x
    x = 1,199,591,229,941,091,328/1,211,248,550.10
  6. Step 6: Final answer
    x = 990,375,781.95

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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.