Home / 218,705,629.80-328,095,186.30-65,367,186.60

Finding the Fourth Proportional to 218,705,629.80, 328,095,186.30 and 65,367,186.60

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Solution

The fourth proportional to 218,705,629.80, 328,095,186.30 and 65,367,186.60 is: 98,061,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,705,629.80 : 328,095,186.30 = 65,367,186.60 : x
  2. Step 2: Convert to fraction form
    218,705,629.80/328,095,186.30 = 65,367,186.60/x
  3. Step 3: Cross multiply
    218,705,629.80x = 328,095,186.30 × 65,367,186.60
  4. Step 4: Simplify right side
    218,705,629.80x = 21,446,659,265,433,864
  5. Step 5: Solve for x
    x = 21,446,659,265,433,864/218,705,629.80
  6. Step 6: Final answer
    x = 98,061,761.30

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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.