Home / 20,530,206.80-28,337,998.92-11,834,191.76

Finding the Fourth Proportional to 20,530,206.80, 28,337,998.92 and 11,834,191.76

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Solution

The fourth proportional to 20,530,206.80, 28,337,998.92 and 11,834,191.76 is: 16,334,823.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530,206.80 : 28,337,998.92 = 11,834,191.76 : x
  2. Step 2: Convert to fraction form
    20,530,206.80/28,337,998.92 = 11,834,191.76/x
  3. Step 3: Cross multiply
    20,530,206.80x = 28,337,998.92 × 11,834,191.76
  4. Step 4: Simplify right side
    20,530,206.80x = 335,357,313,313,952.94
  5. Step 5: Solve for x
    x = 335,357,313,313,952.94/20,530,206.80
  6. Step 6: Final answer
    x = 16,334,823.93

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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.