Home / 28,052,331.20-42,078,496.80-20,494,059.20

Finding the Fourth Proportional to 28,052,331.20, 42,078,496.80 and 20,494,059.20

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Solution

The fourth proportional to 28,052,331.20, 42,078,496.80 and 20,494,059.20 is: 30,741,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052,331.20 : 42,078,496.80 = 20,494,059.20 : x
  2. Step 2: Convert to fraction form
    28,052,331.20/42,078,496.80 = 20,494,059.20/x
  3. Step 3: Cross multiply
    28,052,331.20x = 42,078,496.80 × 20,494,059.20
  4. Step 4: Simplify right side
    28,052,331.20x = 862,359,204,466,210.50
  5. Step 5: Solve for x
    x = 862,359,204,466,210.50/28,052,331.20
  6. Step 6: Final answer
    x = 30,741,088.80

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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.