Home / 220,198,417.20-330,287,128.20-74,617,700.40

Finding the Fourth Proportional to 220,198,417.20, 330,287,128.20 and 74,617,700.40

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Solution

The fourth proportional to 220,198,417.20, 330,287,128.20 and 74,617,700.40 is: 111,922,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,198,417.20 : 330,287,128.20 = 74,617,700.40 : x
  2. Step 2: Convert to fraction form
    220,198,417.20/330,287,128.20 = 74,617,700.40/x
  3. Step 3: Cross multiply
    220,198,417.20x = 330,287,128.20 × 74,617,700.40
  4. Step 4: Simplify right side
    220,198,417.20x = 24,645,265,978,003,992
  5. Step 5: Solve for x
    x = 24,645,265,978,003,992/220,198,417.20
  6. Step 6: Final answer
    x = 111,922,993.32

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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.