Home / 7,178,959.90-9,906,995.69-3,915,844.66

Finding the Fourth Proportional to 7,178,959.90, 9,906,995.69 and 3,915,844.66

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Solution

The fourth proportional to 7,178,959.90, 9,906,995.69 and 3,915,844.66 is: 5,403,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,959.90 : 9,906,995.69 = 3,915,844.66 : x
  2. Step 2: Convert to fraction form
    7,178,959.90/9,906,995.69 = 3,915,844.66/x
  3. Step 3: Cross multiply
    7,178,959.90x = 9,906,995.69 × 3,915,844.66
  4. Step 4: Simplify right side
    7,178,959.90x = 38,794,256,149,750.30
  5. Step 5: Solve for x
    x = 38,794,256,149,750.30/7,178,959.90
  6. Step 6: Final answer
    x = 5,403,882.55

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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.