Home / 2,113,090.62-2,912,829.54-1,295,778.78

Finding the Fourth Proportional to 2,113,090.62, 2,912,829.54 and 1,295,778.78

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Solution

The fourth proportional to 2,113,090.62, 2,912,829.54 and 1,295,778.78 is: 1,786,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,090.62 : 2,912,829.54 = 1,295,778.78 : x
  2. Step 2: Convert to fraction form
    2,113,090.62/2,912,829.54 = 1,295,778.78/x
  3. Step 3: Cross multiply
    2,113,090.62x = 2,912,829.54 × 1,295,778.78
  4. Step 4: Simplify right side
    2,113,090.62x = 3,774,382,707,689.16
  5. Step 5: Solve for x
    x = 3,774,382,707,689.16/2,113,090.62
  6. Step 6: Final answer
    x = 1,786,190.65

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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.