Home / 3,928,819.89-5,421,478.35-2,209,608.26

Finding the Fourth Proportional to 3,928,819.89, 5,421,478.35 and 2,209,608.26

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Solution

The fourth proportional to 3,928,819.89, 5,421,478.35 and 2,209,608.26 is: 3,049,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,819.89 : 5,421,478.35 = 2,209,608.26 : x
  2. Step 2: Convert to fraction form
    3,928,819.89/5,421,478.35 = 2,209,608.26/x
  3. Step 3: Cross multiply
    3,928,819.89x = 5,421,478.35 × 2,209,608.26
  4. Step 4: Simplify right side
    3,928,819.89x = 11,979,343,316,463.78
  5. Step 5: Solve for x
    x = 11,979,343,316,463.78/3,928,819.89
  6. Step 6: Final answer
    x = 3,049,094.55

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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.