Home / 13,501,019.25-18,631,406.57-7,389,447.75

Finding the Fourth Proportional to 13,501,019.25, 18,631,406.57 and 7,389,447.75

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Solution

The fourth proportional to 13,501,019.25, 18,631,406.57 and 7,389,447.75 is: 10,197,437.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501,019.25 : 18,631,406.57 = 7,389,447.75 : x
  2. Step 2: Convert to fraction form
    13,501,019.25/18,631,406.57 = 7,389,447.75/x
  3. Step 3: Cross multiply
    13,501,019.25x = 18,631,406.57 × 7,389,447.75
  4. Step 4: Simplify right side
    13,501,019.25x = 137,675,805,321,074.48
  5. Step 5: Solve for x
    x = 137,675,805,321,074.48/13,501,019.25
  6. Step 6: Final answer
    x = 10,197,437.90

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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.