Home / 78,806,305.68-108,751,645.08-43,999,530

Finding the Fourth Proportional to 78,806,305.68, 108,751,645.08 and 43,999,530

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Solution

The fourth proportional to 78,806,305.68, 108,751,645.08 and 43,999,530 is: 60,718,761.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,806,305.68 : 108,751,645.08 = 43,999,530 : x
  2. Step 2: Convert to fraction form
    78,806,305.68/108,751,645.08 = 43,999,530/x
  3. Step 3: Cross multiply
    78,806,305.68x = 108,751,645.08 × 43,999,530
  4. Step 4: Simplify right side
    78,806,305.68x = 4,785,021,270,246,812
  5. Step 5: Solve for x
    x = 4,785,021,270,246,812/78,806,305.68
  6. Step 6: Final answer
    x = 60,718,761.39

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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.