Home / 1,165,338,645.96-1,608,148,563.66-636,691,280.88

Finding the Fourth Proportional to 1,165,338,645.96, 1,608,148,563.66 and 636,691,280.88

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Solution

The fourth proportional to 1,165,338,645.96, 1,608,148,563.66 and 636,691,280.88 is: 878,623,713.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,338,645.96 : 1,608,148,563.66 = 636,691,280.88 : x
  2. Step 2: Convert to fraction form
    1,165,338,645.96/1,608,148,563.66 = 636,691,280.88/x
  3. Step 3: Cross multiply
    1,165,338,645.96x = 1,608,148,563.66 × 636,691,280.88
  4. Step 4: Simplify right side
    1,165,338,645.96x = 1,023,894,168,842,017,664
  5. Step 5: Solve for x
    x = 1,023,894,168,842,017,664/1,165,338,645.96
  6. Step 6: Final answer
    x = 878,623,713.71

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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.