Home / 20,633,110.80-30,949,666.20-18,719,923.20

Finding the Fourth Proportional to 20,633,110.80, 30,949,666.20 and 18,719,923.20

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Solution

The fourth proportional to 20,633,110.80, 30,949,666.20 and 18,719,923.20 is: 28,079,884.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633,110.80 : 30,949,666.20 = 18,719,923.20 : x
  2. Step 2: Convert to fraction form
    20,633,110.80/30,949,666.20 = 18,719,923.20/x
  3. Step 3: Cross multiply
    20,633,110.80x = 30,949,666.20 × 18,719,923.20
  4. Step 4: Simplify right side
    20,633,110.80x = 579,375,374,329,635.75
  5. Step 5: Solve for x
    x = 579,375,374,329,635.75/20,633,110.80
  6. Step 6: Final answer
    x = 28,079,884.80

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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.