Home / 28,722,145.60-43,104,213.60-20,219,089.60

Finding the Fourth Proportional to 28,722,145.60, 43,104,213.60 and 20,219,089.60

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Solution

The fourth proportional to 28,722,145.60, 43,104,213.60 and 20,219,089.60 is: 30,343,414.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722,145.60 : 43,104,213.60 = 20,219,089.60 : x
  2. Step 2: Convert to fraction form
    28,722,145.60/43,104,213.60 = 20,219,089.60/x
  3. Step 3: Cross multiply
    28,722,145.60x = 43,104,213.60 × 20,219,089.60
  4. Step 4: Simplify right side
    28,722,145.60x = 871,527,956,915,938.62
  5. Step 5: Solve for x
    x = 871,527,956,915,938.62/28,722,145.60
  6. Step 6: Final answer
    x = 30,343,414.07

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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.