Home / 13,890,115.52-20,828,355.46-6,871,121.27

Finding the Fourth Proportional to 13,890,115.52, 20,828,355.46 and 6,871,121.27

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Solution

The fourth proportional to 13,890,115.52, 20,828,355.46 and 6,871,121.27 is: 10,303,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890,115.52 : 20,828,355.46 = 6,871,121.27 : x
  2. Step 2: Convert to fraction form
    13,890,115.52/20,828,355.46 = 6,871,121.27/x
  3. Step 3: Cross multiply
    13,890,115.52x = 20,828,355.46 × 6,871,121.27
  4. Step 4: Simplify right side
    13,890,115.52x = 143,114,156,099,007.03
  5. Step 5: Solve for x
    x = 143,114,156,099,007.03/13,890,115.52
  6. Step 6: Final answer
    x = 10,303,309.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.