Home / 1,327,104,078.20-1,990,656,117.30-406,973,108.60

Finding the Fourth Proportional to 1,327,104,078.20, 1,990,656,117.30 and 406,973,108.60

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Solution

The fourth proportional to 1,327,104,078.20, 1,990,656,117.30 and 406,973,108.60 is: 610,459,662.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,104,078.20 : 1,990,656,117.30 = 406,973,108.60 : x
  2. Step 2: Convert to fraction form
    1,327,104,078.20/1,990,656,117.30 = 406,973,108.60/x
  3. Step 3: Cross multiply
    1,327,104,078.20x = 1,990,656,117.30 × 406,973,108.60
  4. Step 4: Simplify right side
    1,327,104,078.20x = 810,143,508,211,187,328
  5. Step 5: Solve for x
    x = 810,143,508,211,187,328/1,327,104,078.20
  6. Step 6: Final answer
    x = 610,459,662.90

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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.