Home / 3,128,513.62-4,315,118.52-2,871,219.92

Finding the Fourth Proportional to 3,128,513.62, 4,315,118.52 and 2,871,219.92

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Solution

The fourth proportional to 3,128,513.62, 4,315,118.52 and 2,871,219.92 is: 3,960,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,513.62 : 4,315,118.52 = 2,871,219.92 : x
  2. Step 2: Convert to fraction form
    3,128,513.62/4,315,118.52 = 2,871,219.92/x
  3. Step 3: Cross multiply
    3,128,513.62x = 4,315,118.52 × 2,871,219.92
  4. Step 4: Simplify right side
    3,128,513.62x = 12,389,654,251,784.92
  5. Step 5: Solve for x
    x = 12,389,654,251,784.92/3,128,513.62
  6. Step 6: Final answer
    x = 3,960,236.64

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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.