Home / 218,735,200.80-328,228,772.40-82,518,343.20

Finding the Fourth Proportional to 218,735,200.80, 328,228,772.40 and 82,518,343.20

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Solution

The fourth proportional to 218,735,200.80, 328,228,772.40 and 82,518,343.20 is: 123,825,037.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,735,200.80 : 328,228,772.40 = 82,518,343.20 : x
  2. Step 2: Convert to fraction form
    218,735,200.80/328,228,772.40 = 82,518,343.20/x
  3. Step 3: Cross multiply
    218,735,200.80x = 328,228,772.40 × 82,518,343.20
  4. Step 4: Simplify right side
    218,735,200.80x = 27,084,894,489,017,888
  5. Step 5: Solve for x
    x = 27,084,894,489,017,888/218,735,200.80
  6. Step 6: Final answer
    x = 123,825,037.72

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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.