Home / 3,988,377.78-5,503,973.76-2,312,287.63

Finding the Fourth Proportional to 3,988,377.78, 5,503,973.76 and 2,312,287.63

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Solution

The fourth proportional to 3,988,377.78, 5,503,973.76 and 2,312,287.63 is: 3,190,964.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,377.78 : 5,503,973.76 = 2,312,287.63 : x
  2. Step 2: Convert to fraction form
    3,988,377.78/5,503,973.76 = 2,312,287.63/x
  3. Step 3: Cross multiply
    3,988,377.78x = 5,503,973.76 × 2,312,287.63
  4. Step 4: Simplify right side
    3,988,377.78x = 12,726,770,427,796.59
  5. Step 5: Solve for x
    x = 12,726,770,427,796.59/3,988,377.78
  6. Step 6: Final answer
    x = 3,190,964.13

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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.