Home / 217,219,982.40-325,829,973.60-148,345,228.80

Finding the Fourth Proportional to 217,219,982.40, 325,829,973.60 and 148,345,228.80

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Solution

The fourth proportional to 217,219,982.40, 325,829,973.60 and 148,345,228.80 is: 222,517,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,219,982.40 : 325,829,973.60 = 148,345,228.80 : x
  2. Step 2: Convert to fraction form
    217,219,982.40/325,829,973.60 = 148,345,228.80/x
  3. Step 3: Cross multiply
    217,219,982.40x = 325,829,973.60 × 148,345,228.80
  4. Step 4: Simplify right side
    217,219,982.40x = 48,335,321,983,589,968
  5. Step 5: Solve for x
    x = 48,335,321,983,589,968/217,219,982.40
  6. Step 6: Final answer
    x = 222,517,843.20

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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.