Home / 258,826,753,488.80-388,240,130,233.20-72,711,863,760.80

Finding the Fourth Proportional to 258,826,753,488.80, 388,240,130,233.20 and 72,711,863,760.80

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Solution

The fourth proportional to 258,826,753,488.80, 388,240,130,233.20 and 72,711,863,760.80 is: 109,067,795,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,826,753,488.80 : 388,240,130,233.20 = 72,711,863,760.80 : x
  2. Step 2: Convert to fraction form
    258,826,753,488.80/388,240,130,233.20 = 72,711,863,760.80/x
  3. Step 3: Cross multiply
    258,826,753,488.80x = 388,240,130,233.20 × 72,711,863,760.80
  4. Step 4: Simplify right side
    258,826,753,488.80x = 28,229,663,455,991,690,166,272
  5. Step 5: Solve for x
    x = 28,229,663,455,991,690,166,272/258,826,753,488.80
  6. Step 6: Final answer
    x = 109,067,795,641.20

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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.