Home / 20,778,556.66-28,673,041.77-11,956,584.05

Finding the Fourth Proportional to 20,778,556.66, 28,673,041.77 and 11,956,584.05

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Solution

The fourth proportional to 20,778,556.66, 28,673,041.77 and 11,956,584.05 is: 16,499,299.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,556.66 : 28,673,041.77 = 11,956,584.05 : x
  2. Step 2: Convert to fraction form
    20,778,556.66/28,673,041.77 = 11,956,584.05/x
  3. Step 3: Cross multiply
    20,778,556.66x = 28,673,041.77 × 11,956,584.05
  4. Step 4: Simplify right side
    20,778,556.66x = 342,831,633,689,017.62
  5. Step 5: Solve for x
    x = 342,831,633,689,017.62/20,778,556.66
  6. Step 6: Final answer
    x = 16,499,299.71

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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.