Home / 13,148,388.36-18,144,427.86-7,347,217.68

Finding the Fourth Proportional to 13,148,388.36, 18,144,427.86 and 7,347,217.68

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Solution

The fourth proportional to 13,148,388.36, 18,144,427.86 and 7,347,217.68 is: 10,138,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,388.36 : 18,144,427.86 = 7,347,217.68 : x
  2. Step 2: Convert to fraction form
    13,148,388.36/18,144,427.86 = 7,347,217.68/x
  3. Step 3: Cross multiply
    13,148,388.36x = 18,144,427.86 × 7,347,217.68
  4. Step 4: Simplify right side
    13,148,388.36x = 133,311,061,166,476.56
  5. Step 5: Solve for x
    x = 133,311,061,166,476.56/13,148,388.36
  6. Step 6: Final answer
    x = 10,138,965.90

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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.