Home / 12,081,738.60-18,122,607.90-7,304,164.20

Finding the Fourth Proportional to 12,081,738.60, 18,122,607.90 and 7,304,164.20

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Solution

The fourth proportional to 12,081,738.60, 18,122,607.90 and 7,304,164.20 is: 10,956,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081,738.60 : 18,122,607.90 = 7,304,164.20 : x
  2. Step 2: Convert to fraction form
    12,081,738.60/18,122,607.90 = 7,304,164.20/x
  3. Step 3: Cross multiply
    12,081,738.60x = 18,122,607.90 × 7,304,164.20
  4. Step 4: Simplify right side
    12,081,738.60x = 132,370,503,833,817.17
  5. Step 5: Solve for x
    x = 132,370,503,833,817.17/12,081,738.60
  6. Step 6: Final answer
    x = 10,956,246.30

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Similar ratio
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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.