Home / 20,914,329.24-28,853,346.78-12,640,026.42

Finding the Fourth Proportional to 20,914,329.24, 28,853,346.78 and 12,640,026.42

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Solution

The fourth proportional to 20,914,329.24, 28,853,346.78 and 12,640,026.42 is: 17,438,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914,329.24 : 28,853,346.78 = 12,640,026.42 : x
  2. Step 2: Convert to fraction form
    20,914,329.24/28,853,346.78 = 12,640,026.42/x
  3. Step 3: Cross multiply
    20,914,329.24x = 28,853,346.78 × 12,640,026.42
  4. Step 4: Simplify right side
    20,914,329.24x = 364,707,065,604,621.94
  5. Step 5: Solve for x
    x = 364,707,065,604,621.94/20,914,329.24
  6. Step 6: Final answer
    x = 17,438,143.07

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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.