Home / 12,469,415.70-18,693,755.55-5,286,465.30

Finding the Fourth Proportional to 12,469,415.70, 18,693,755.55 and 5,286,465.30

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Solution

The fourth proportional to 12,469,415.70, 18,693,755.55 and 5,286,465.30 is: 7,925,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469,415.70 : 18,693,755.55 = 5,286,465.30 : x
  2. Step 2: Convert to fraction form
    12,469,415.70/18,693,755.55 = 5,286,465.30/x
  3. Step 3: Cross multiply
    12,469,415.70x = 18,693,755.55 × 5,286,465.30
  4. Step 4: Simplify right side
    12,469,415.70x = 98,823,890,041,757.42
  5. Step 5: Solve for x
    x = 98,823,890,041,757.42/12,469,415.70
  6. Step 6: Final answer
    x = 7,925,302.39

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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.