Home / 407,647,261.48-611,031,040.74-200,144,351.56

Finding the Fourth Proportional to 407,647,261.48, 611,031,040.74 and 200,144,351.56

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Solution

The fourth proportional to 407,647,261.48, 611,031,040.74 and 200,144,351.56 is: 300,000,571.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,647,261.48 : 611,031,040.74 = 200,144,351.56 : x
  2. Step 2: Convert to fraction form
    407,647,261.48/611,031,040.74 = 200,144,351.56/x
  3. Step 3: Cross multiply
    407,647,261.48x = 611,031,040.74 × 200,144,351.56
  4. Step 4: Simplify right side
    407,647,261.48x = 122,294,411,431,939,248
  5. Step 5: Solve for x
    x = 122,294,411,431,939,248/407,647,261.48
  6. Step 6: Final answer
    x = 300,000,571.54

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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.