Home / 78,941,481.36-108,933,713.97-45,899,386.29

Finding the Fourth Proportional to 78,941,481.36, 108,933,713.97 and 45,899,386.29

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Solution

The fourth proportional to 78,941,481.36, 108,933,713.97 and 45,899,386.29 is: 63,337,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,941,481.36 : 108,933,713.97 = 45,899,386.29 : x
  2. Step 2: Convert to fraction form
    78,941,481.36/108,933,713.97 = 45,899,386.29/x
  3. Step 3: Cross multiply
    78,941,481.36x = 108,933,713.97 × 45,899,386.29
  4. Step 4: Simplify right side
    78,941,481.36x = 4,999,990,617,513,399
  5. Step 5: Solve for x
    x = 4,999,990,617,513,399/78,941,481.36
  6. Step 6: Final answer
    x = 63,337,937.56

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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.