Home / 3,991,801.79-5,508,688.68-2,156,260.11

Finding the Fourth Proportional to 3,991,801.79, 5,508,688.68 and 2,156,260.11

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Solution

The fourth proportional to 3,991,801.79, 5,508,688.68 and 2,156,260.11 is: 2,975,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,801.79 : 5,508,688.68 = 2,156,260.11 : x
  2. Step 2: Convert to fraction form
    3,991,801.79/5,508,688.68 = 2,156,260.11/x
  3. Step 3: Cross multiply
    3,991,801.79x = 5,508,688.68 × 2,156,260.11
  4. Step 4: Simplify right side
    3,991,801.79x = 11,878,165,659,092.55
  5. Step 5: Solve for x
    x = 11,878,165,659,092.55/3,991,801.79
  6. Step 6: Final answer
    x = 2,975,640.15

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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.