Home / 1,091,868,081.12-1,638,449,298.72-402,259,217.04

Finding the Fourth Proportional to 1,091,868,081.12, 1,638,449,298.72 and 402,259,217.04

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Solution

The fourth proportional to 1,091,868,081.12, 1,638,449,298.72 and 402,259,217.04 is: 603,627,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,868,081.12 : 1,638,449,298.72 = 402,259,217.04 : x
  2. Step 2: Convert to fraction form
    1,091,868,081.12/1,638,449,298.72 = 402,259,217.04/x
  3. Step 3: Cross multiply
    1,091,868,081.12x = 1,638,449,298.72 × 402,259,217.04
  4. Step 4: Simplify right side
    1,091,868,081.12x = 659,081,332,062,844,288
  5. Step 5: Solve for x
    x = 659,081,332,062,844,288/1,091,868,081.12
  6. Step 6: Final answer
    x = 603,627,254.48

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Double scale
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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.