Home / 146,858,713.20-220,458,218.40-78,834,265.20

Finding the Fourth Proportional to 146,858,713.20, 220,458,218.40 and 78,834,265.20

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Solution

The fourth proportional to 146,858,713.20, 220,458,218.40 and 78,834,265.20 is: 118,342,734.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,858,713.20 : 220,458,218.40 = 78,834,265.20 : x
  2. Step 2: Convert to fraction form
    146,858,713.20/220,458,218.40 = 78,834,265.20/x
  3. Step 3: Cross multiply
    146,858,713.20x = 220,458,218.40 × 78,834,265.20
  4. Step 4: Simplify right side
    146,858,713.20x = 17,379,661,654,865,120
  5. Step 5: Solve for x
    x = 17,379,661,654,865,120/146,858,713.20
  6. Step 6: Final answer
    x = 118,342,734.16

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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.