Home / 3,899,156.81-5,380,422.14-2,156,549.29

Finding the Fourth Proportional to 3,899,156.81, 5,380,422.14 and 2,156,549.29

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Solution

The fourth proportional to 3,899,156.81, 5,380,422.14 and 2,156,549.29 is: 2,975,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,156.81 : 5,380,422.14 = 2,156,549.29 : x
  2. Step 2: Convert to fraction form
    3,899,156.81/5,380,422.14 = 2,156,549.29/x
  3. Step 3: Cross multiply
    3,899,156.81x = 5,380,422.14 × 2,156,549.29
  4. Step 4: Simplify right side
    3,899,156.81x = 11,603,145,545,917.28
  5. Step 5: Solve for x
    x = 11,603,145,545,917.28/3,899,156.81
  6. Step 6: Final answer
    x = 2,975,808.90

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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.