Home / 78,326,371.64-117,489,558.38-27,208,439.66

Finding the Fourth Proportional to 78,326,371.64, 117,489,558.38 and 27,208,439.66

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Solution

The fourth proportional to 78,326,371.64, 117,489,558.38 and 27,208,439.66 is: 40,812,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,326,371.64 : 117,489,558.38 = 27,208,439.66 : x
  2. Step 2: Convert to fraction form
    78,326,371.64/117,489,558.38 = 27,208,439.66/x
  3. Step 3: Cross multiply
    78,326,371.64x = 117,489,558.38 × 27,208,439.66
  4. Step 4: Simplify right side
    78,326,371.64x = 3,196,707,560,019,959
  5. Step 5: Solve for x
    x = 3,196,707,560,019,959/78,326,371.64
  6. Step 6: Final answer
    x = 40,812,659.81

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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.