Home / 8,182,980.40-12,281,906.40-4,142,279.20

Finding the Fourth Proportional to 8,182,980.40, 12,281,906.40 and 4,142,279.20

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Solution

The fourth proportional to 8,182,980.40, 12,281,906.40 and 4,142,279.20 is: 6,217,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182,980.40 : 12,281,906.40 = 4,142,279.20 : x
  2. Step 2: Convert to fraction form
    8,182,980.40/12,281,906.40 = 4,142,279.20/x
  3. Step 3: Cross multiply
    8,182,980.40x = 12,281,906.40 × 4,142,279.20
  4. Step 4: Simplify right side
    8,182,980.40x = 50,875,085,417,066.88
  5. Step 5: Solve for x
    x = 50,875,085,417,066.88/8,182,980.40
  6. Step 6: Final answer
    x = 6,217,182.85

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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.