Home / 13,238,425.54-18,268,918.77-7,437,085.12

Finding the Fourth Proportional to 13,238,425.54, 18,268,918.77 and 7,437,085.12

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Solution

The fourth proportional to 13,238,425.54, 18,268,918.77 and 7,437,085.12 is: 10,263,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238,425.54 : 18,268,918.77 = 7,437,085.12 : x
  2. Step 2: Convert to fraction form
    13,238,425.54/18,268,918.77 = 7,437,085.12/x
  3. Step 3: Cross multiply
    13,238,425.54x = 18,268,918.77 × 7,437,085.12
  4. Step 4: Simplify right side
    13,238,425.54x = 135,867,503,942,855.70
  5. Step 5: Solve for x
    x = 135,867,503,942,855.70/13,238,425.54
  6. Step 6: Final answer
    x = 10,263,116.53

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1.5x scale

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.