Home / 18,676,434.87-28,019,210.46-7,161,696.42

Finding the Fourth Proportional to 18,676,434.87, 28,019,210.46 and 7,161,696.42

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Solution

The fourth proportional to 18,676,434.87, 28,019,210.46 and 7,161,696.42 is: 10,744,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676,434.87 : 28,019,210.46 = 7,161,696.42 : x
  2. Step 2: Convert to fraction form
    18,676,434.87/28,019,210.46 = 7,161,696.42/x
  3. Step 3: Cross multiply
    18,676,434.87x = 28,019,210.46 × 7,161,696.42
  4. Step 4: Simplify right side
    18,676,434.87x = 200,665,079,242,608.56
  5. Step 5: Solve for x
    x = 200,665,079,242,608.56/18,676,434.87
  6. Step 6: Final answer
    x = 10,744,292.51

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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.