Home / 1,165,338,653.21-1,608,148,573.66-636,691,288.13

Finding the Fourth Proportional to 1,165,338,653.21, 1,608,148,573.66 and 636,691,288.13

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Solution

The fourth proportional to 1,165,338,653.21, 1,608,148,573.66 and 636,691,288.13 is: 878,623,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,338,653.21 : 1,608,148,573.66 = 636,691,288.13 : x
  2. Step 2: Convert to fraction form
    1,165,338,653.21/1,608,148,573.66 = 636,691,288.13/x
  3. Step 3: Cross multiply
    1,165,338,653.21x = 1,608,148,573.66 × 636,691,288.13
  4. Step 4: Simplify right side
    1,165,338,653.21x = 1,023,894,186,868,007,680
  5. Step 5: Solve for x
    x = 1,023,894,186,868,007,680/1,165,338,653.21
  6. Step 6: Final answer
    x = 878,623,723.71

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.