Home / 2,117,581.69-3,176,109.90-1,253,530.75

Finding the Fourth Proportional to 2,117,581.69, 3,176,109.90 and 1,253,530.75

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Solution

The fourth proportional to 2,117,581.69, 3,176,109.90 and 1,253,530.75 is: 1,880,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,581.69 : 3,176,109.90 = 1,253,530.75 : x
  2. Step 2: Convert to fraction form
    2,117,581.69/3,176,109.90 = 1,253,530.75/x
  3. Step 3: Cross multiply
    2,117,581.69x = 3,176,109.90 × 1,253,530.75
  4. Step 4: Simplify right side
    2,117,581.69x = 3,981,351,425,029.43
  5. Step 5: Solve for x
    x = 3,981,351,425,029.43/2,117,581.69
  6. Step 6: Final answer
    x = 1,880,140.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.