Home / 15,689,172,745.60-21,650,275,885.60-8,914,096,413.52

Finding the Fourth Proportional to 15,689,172,745.60, 21,650,275,885.60 and 8,914,096,413.52

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Solution

The fourth proportional to 15,689,172,745.60, 21,650,275,885.60 and 8,914,096,413.52 is: 12,301,008,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,689,172,745.60 : 21,650,275,885.60 = 8,914,096,413.52 : x
  2. Step 2: Convert to fraction form
    15,689,172,745.60/21,650,275,885.60 = 8,914,096,413.52/x
  3. Step 3: Cross multiply
    15,689,172,745.60x = 21,650,275,885.60 × 8,914,096,413.52
  4. Step 4: Simplify right side
    15,689,172,745.60x = 192,992,646,623,545,491,456
  5. Step 5: Solve for x
    x = 192,992,646,623,545,491,456/15,689,172,745.60
  6. Step 6: Final answer
    x = 12,301,008,456.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.