Home / 13,378,441.58-18,463,780.95-7,499,663.56

Finding the Fourth Proportional to 13,378,441.58, 18,463,780.95 and 7,499,663.56

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Solution

The fourth proportional to 13,378,441.58, 18,463,780.95 and 7,499,663.56 is: 10,350,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378,441.58 : 18,463,780.95 = 7,499,663.56 : x
  2. Step 2: Convert to fraction form
    13,378,441.58/18,463,780.95 = 7,499,663.56/x
  3. Step 3: Cross multiply
    13,378,441.58x = 18,463,780.95 × 7,499,663.56
  4. Step 4: Simplify right side
    13,378,441.58x = 138,472,145,143,126.89
  5. Step 5: Solve for x
    x = 138,472,145,143,126.89/13,378,441.58
  6. Step 6: Final answer
    x = 10,350,394.28

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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.