Home / 103,438,144.32-155,179,923.84-30,660,538.56

Finding the Fourth Proportional to 103,438,144.32, 155,179,923.84 and 30,660,538.56

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Solution

The fourth proportional to 103,438,144.32, 155,179,923.84 and 30,660,538.56 is: 45,997,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,438,144.32 : 155,179,923.84 = 30,660,538.56 : x
  2. Step 2: Convert to fraction form
    103,438,144.32/155,179,923.84 = 30,660,538.56/x
  3. Step 3: Cross multiply
    103,438,144.32x = 155,179,923.84 × 30,660,538.56
  4. Step 4: Simplify right side
    103,438,144.32x = 4,757,900,038,634,183
  5. Step 5: Solve for x
    x = 4,757,900,038,634,183/103,438,144.32
  6. Step 6: Final answer
    x = 45,997,538.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.