Home / 20,779,568.93-28,675,843.98-11,612,211.68

Finding the Fourth Proportional to 20,779,568.93, 28,675,843.98 and 11,612,211.68

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Solution

The fourth proportional to 20,779,568.93, 28,675,843.98 and 11,612,211.68 is: 16,024,873.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,568.93 : 28,675,843.98 = 11,612,211.68 : x
  2. Step 2: Convert to fraction form
    20,779,568.93/28,675,843.98 = 11,612,211.68/x
  3. Step 3: Cross multiply
    20,779,568.93x = 28,675,843.98 × 11,612,211.68
  4. Step 4: Simplify right side
    20,779,568.93x = 332,989,970,398,413.69
  5. Step 5: Solve for x
    x = 332,989,970,398,413.69/20,779,568.93
  6. Step 6: Final answer
    x = 16,024,873.83

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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.