Home / 3,138,726.30-4,331,915.03-1,915,742.51

Finding the Fourth Proportional to 3,138,726.30, 4,331,915.03 and 1,915,742.51

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Solution

The fourth proportional to 3,138,726.30, 4,331,915.03 and 1,915,742.51 is: 2,644,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,726.30 : 4,331,915.03 = 1,915,742.51 : x
  2. Step 2: Convert to fraction form
    3,138,726.30/4,331,915.03 = 1,915,742.51/x
  3. Step 3: Cross multiply
    3,138,726.30x = 4,331,915.03 × 1,915,742.51
  4. Step 4: Simplify right side
    3,138,726.30x = 8,298,833,772,678.93
  5. Step 5: Solve for x
    x = 8,298,833,772,678.93/3,138,726.30
  6. Step 6: Final answer
    x = 2,644,013.20

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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.