Home / 13,247,317.27-18,278,617.85-7,739,628.41

Finding the Fourth Proportional to 13,247,317.27, 18,278,617.85 and 7,739,628.41

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Solution

The fourth proportional to 13,247,317.27, 18,278,617.85 and 7,739,628.41 is: 10,679,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247,317.27 : 18,278,617.85 = 7,739,628.41 : x
  2. Step 2: Convert to fraction form
    13,247,317.27/18,278,617.85 = 7,739,628.41/x
  3. Step 3: Cross multiply
    13,247,317.27x = 18,278,617.85 × 7,739,628.41
  4. Step 4: Simplify right side
    13,247,317.27x = 141,469,710,043,415.12
  5. Step 5: Solve for x
    x = 141,469,710,043,415.12/13,247,317.27
  6. Step 6: Final answer
    x = 10,679,121.45

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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.