Home / 60,511,328.80-90,775,287.60-20,117,600.80

Finding the Fourth Proportional to 60,511,328.80, 90,775,287.60 and 20,117,600.80

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Solution

The fourth proportional to 60,511,328.80, 90,775,287.60 and 20,117,600.80 is: 30,179,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,511,328.80 : 90,775,287.60 = 20,117,600.80 : x
  2. Step 2: Convert to fraction form
    60,511,328.80/90,775,287.60 = 20,117,600.80/x
  3. Step 3: Cross multiply
    60,511,328.80x = 90,775,287.60 × 20,117,600.80
  4. Step 4: Simplify right side
    60,511,328.80x = 1,826,180,998,441,990
  5. Step 5: Solve for x
    x = 1,826,180,998,441,990/60,511,328.80
  6. Step 6: Final answer
    x = 30,179,158.76

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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.