Home / 18,191,685.70-27,287,528.55-8,625,747.70

Finding the Fourth Proportional to 18,191,685.70, 27,287,528.55 and 8,625,747.70

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Solution

The fourth proportional to 18,191,685.70, 27,287,528.55 and 8,625,747.70 is: 12,938,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,685.70 : 27,287,528.55 = 8,625,747.70 : x
  2. Step 2: Convert to fraction form
    18,191,685.70/27,287,528.55 = 8,625,747.70/x
  3. Step 3: Cross multiply
    18,191,685.70x = 27,287,528.55 × 8,625,747.70
  4. Step 4: Simplify right side
    18,191,685.70x = 235,375,336,628,846.81
  5. Step 5: Solve for x
    x = 235,375,336,628,846.81/18,191,685.70
  6. Step 6: Final answer
    x = 12,938,621.55

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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.