Home / 3,128,137.81-4,318,096.31-2,647,201.93

Finding the Fourth Proportional to 3,128,137.81, 4,318,096.31 and 2,647,201.93

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Solution

The fourth proportional to 3,128,137.81, 4,318,096.31 and 2,647,201.93 is: 3,654,210.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,137.81 : 4,318,096.31 = 2,647,201.93 : x
  2. Step 2: Convert to fraction form
    3,128,137.81/4,318,096.31 = 2,647,201.93/x
  3. Step 3: Cross multiply
    3,128,137.81x = 4,318,096.31 × 2,647,201.93
  4. Step 4: Simplify right side
    3,128,137.81x = 11,430,872,872,521.87
  5. Step 5: Solve for x
    x = 11,430,872,872,521.87/3,128,137.81
  6. Step 6: Final answer
    x = 3,654,210.13

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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.