Home / 18,191,314.80-27,286,972.20-8,625,376.80

Finding the Fourth Proportional to 18,191,314.80, 27,286,972.20 and 8,625,376.80

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Solution

The fourth proportional to 18,191,314.80, 27,286,972.20 and 8,625,376.80 is: 12,938,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,314.80 : 27,286,972.20 = 8,625,376.80 : x
  2. Step 2: Convert to fraction form
    18,191,314.80/27,286,972.20 = 8,625,376.80/x
  3. Step 3: Cross multiply
    18,191,314.80x = 27,286,972.20 × 8,625,376.80
  4. Step 4: Simplify right side
    18,191,314.80x = 235,360,416,956,124.97
  5. Step 5: Solve for x
    x = 235,360,416,956,124.97/18,191,314.80
  6. Step 6: Final answer
    x = 12,938,065.20

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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.