Home / 3,418,312.60-5,127,468.90-2,142,854.20

Finding the Fourth Proportional to 3,418,312.60, 5,127,468.90 and 2,142,854.20

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Solution

The fourth proportional to 3,418,312.60, 5,127,468.90 and 2,142,854.20 is: 3,214,281.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,312.60 : 5,127,468.90 = 2,142,854.20 : x
  2. Step 2: Convert to fraction form
    3,418,312.60/5,127,468.90 = 2,142,854.20/x
  3. Step 3: Cross multiply
    3,418,312.60x = 5,127,468.90 × 2,142,854.20
  4. Step 4: Simplify right side
    3,418,312.60x = 10,987,418,267,734.38
  5. Step 5: Solve for x
    x = 10,987,418,267,734.38/3,418,312.60
  6. Step 6: Final answer
    x = 3,214,281.30

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1.5x scale

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.