Home / 891,201,191.20-1,336,801,786.80-853,415,736.10

Finding the Fourth Proportional to 891,201,191.20, 1,336,801,786.80 and 853,415,736.10

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Solution

The fourth proportional to 891,201,191.20, 1,336,801,786.80 and 853,415,736.10 is: 1,280,123,604.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,201,191.20 : 1,336,801,786.80 = 853,415,736.10 : x
  2. Step 2: Convert to fraction form
    891,201,191.20/1,336,801,786.80 = 853,415,736.10/x
  3. Step 3: Cross multiply
    891,201,191.20x = 1,336,801,786.80 × 853,415,736.10
  4. Step 4: Simplify right side
    891,201,191.20x = 1,140,847,680,901,717,248
  5. Step 5: Solve for x
    x = 1,140,847,680,901,717,248/891,201,191.20
  6. Step 6: Final answer
    x = 1,280,123,604.15

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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.