Home / 13,351,912.39-18,425,639.07-7,240,345.75

Finding the Fourth Proportional to 13,351,912.39, 18,425,639.07 and 7,240,345.75

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Solution

The fourth proportional to 13,351,912.39, 18,425,639.07 and 7,240,345.75 is: 9,991,677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351,912.39 : 18,425,639.07 = 7,240,345.75 : x
  2. Step 2: Convert to fraction form
    13,351,912.39/18,425,639.07 = 7,240,345.75/x
  3. Step 3: Cross multiply
    13,351,912.39x = 18,425,639.07 × 7,240,345.75
  4. Step 4: Simplify right side
    13,351,912.39x = 133,407,997,531,508.45
  5. Step 5: Solve for x
    x = 133,407,997,531,508.45/13,351,912.39
  6. Step 6: Final answer
    x = 9,991,677.12

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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.