Home / 805,923,087.15-1,206,869,091.53-644,679,951.15

Finding the Fourth Proportional to 805,923,087.15, 1,206,869,091.53 and 644,679,951.15

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Solution

The fourth proportional to 805,923,087.15, 1,206,869,091.53 and 644,679,951.15 is: 965,407,641.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,923,087.15 : 1,206,869,091.53 = 644,679,951.15 : x
  2. Step 2: Convert to fraction form
    805,923,087.15/1,206,869,091.53 = 644,679,951.15/x
  3. Step 3: Cross multiply
    805,923,087.15x = 1,206,869,091.53 × 644,679,951.15
  4. Step 4: Simplify right side
    805,923,087.15x = 778,044,306,968,781,952
  5. Step 5: Solve for x
    x = 778,044,306,968,781,952/805,923,087.15
  6. Step 6: Final answer
    x = 965,407,641.71

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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.