Home / 74,370,019.20-111,561,454.80-20,517,331.20

Finding the Fourth Proportional to 74,370,019.20, 111,561,454.80 and 20,517,331.20

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Solution

The fourth proportional to 74,370,019.20, 111,561,454.80 and 20,517,331.20 is: 30,777,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,370,019.20 : 111,561,454.80 = 20,517,331.20 : x
  2. Step 2: Convert to fraction form
    74,370,019.20/111,561,454.80 = 20,517,331.20/x
  3. Step 3: Cross multiply
    74,370,019.20x = 111,561,454.80 × 20,517,331.20
  4. Step 4: Simplify right side
    74,370,019.20x = 2,288,943,317,285,429.50
  5. Step 5: Solve for x
    x = 2,288,943,317,285,429.50/74,370,019.20
  6. Step 6: Final answer
    x = 30,777,769.62

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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.