Home / 20,425,834.08-30,646,035.20-10,189,788.34

Finding the Fourth Proportional to 20,425,834.08, 30,646,035.20 and 10,189,788.34

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Solution

The fourth proportional to 20,425,834.08, 30,646,035.20 and 10,189,788.34 is: 15,288,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425,834.08 : 30,646,035.20 = 10,189,788.34 : x
  2. Step 2: Convert to fraction form
    20,425,834.08/30,646,035.20 = 10,189,788.34/x
  3. Step 3: Cross multiply
    20,425,834.08x = 30,646,035.20 × 10,189,788.34
  4. Step 4: Simplify right side
    20,425,834.08x = 312,276,612,148,189.56
  5. Step 5: Solve for x
    x = 312,276,612,148,189.56/20,425,834.08
  6. Step 6: Final answer
    x = 15,288,316.30

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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.