Home / 1,100,290,682.40-1,650,436,023.60-991,451,565.60

Finding the Fourth Proportional to 1,100,290,682.40, 1,650,436,023.60 and 991,451,565.60

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Solution

The fourth proportional to 1,100,290,682.40, 1,650,436,023.60 and 991,451,565.60 is: 1,487,177,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,290,682.40 : 1,650,436,023.60 = 991,451,565.60 : x
  2. Step 2: Convert to fraction form
    1,100,290,682.40/1,650,436,023.60 = 991,451,565.60/x
  3. Step 3: Cross multiply
    1,100,290,682.40x = 1,650,436,023.60 × 991,451,565.60
  4. Step 4: Simplify right side
    1,100,290,682.40x = 1,636,327,379,520,858,368
  5. Step 5: Solve for x
    x = 1,636,327,379,520,858,368/1,100,290,682.40
  6. Step 6: Final answer
    x = 1,487,177,348.40

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Half scale
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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.