Home / 655,876,957.39-983,815,436.18-219,177,641.61

Finding the Fourth Proportional to 655,876,957.39, 983,815,436.18 and 219,177,641.61

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Solution

The fourth proportional to 655,876,957.39, 983,815,436.18 and 219,177,641.61 is: 328,766,462.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,876,957.39 : 983,815,436.18 = 219,177,641.61 : x
  2. Step 2: Convert to fraction form
    655,876,957.39/983,815,436.18 = 219,177,641.61/x
  3. Step 3: Cross multiply
    655,876,957.39x = 983,815,436.18 × 219,177,641.61
  4. Step 4: Simplify right side
    655,876,957.39x = 215,630,347,081,993,824
  5. Step 5: Solve for x
    x = 215,630,347,081,993,824/655,876,957.39
  6. Step 6: Final answer
    x = 328,766,462.45

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1.5x scale

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.