Home / 52,518,751.20-78,722,139.60-20,158,149.60

Finding the Fourth Proportional to 52,518,751.20, 78,722,139.60 and 20,158,149.60

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Solution

The fourth proportional to 52,518,751.20, 78,722,139.60 and 20,158,149.60 is: 30,215,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,518,751.20 : 78,722,139.60 = 20,158,149.60 : x
  2. Step 2: Convert to fraction form
    52,518,751.20/78,722,139.60 = 20,158,149.60/x
  3. Step 3: Cross multiply
    52,518,751.20x = 78,722,139.60 × 20,158,149.60
  4. Step 4: Simplify right side
    52,518,751.20x = 1,586,892,666,888,884.25
  5. Step 5: Solve for x
    x = 1,586,892,666,888,884.25/52,518,751.20
  6. Step 6: Final answer
    x = 30,215,734.96

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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.