Home / 409,339,955.95-613,942,667.27-146,970,191.46

Finding the Fourth Proportional to 409,339,955.95, 613,942,667.27 and 146,970,191.46

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Solution

The fourth proportional to 409,339,955.95, 613,942,667.27 and 146,970,191.46 is: 220,431,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,339,955.95 : 613,942,667.27 = 146,970,191.46 : x
  2. Step 2: Convert to fraction form
    409,339,955.95/613,942,667.27 = 146,970,191.46/x
  3. Step 3: Cross multiply
    409,339,955.95x = 613,942,667.27 × 146,970,191.46
  4. Step 4: Simplify right side
    409,339,955.95x = 90,231,271,352,797,040
  5. Step 5: Solve for x
    x = 90,231,271,352,797,040/409,339,955.95
  6. Step 6: Final answer
    x = 220,431,135.64

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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.