Home / 443,233,313.20-664,849,969.80-419,424,756.40

Finding the Fourth Proportional to 443,233,313.20, 664,849,969.80 and 419,424,756.40

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Solution

The fourth proportional to 443,233,313.20, 664,849,969.80 and 419,424,756.40 is: 629,137,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,233,313.20 : 664,849,969.80 = 419,424,756.40 : x
  2. Step 2: Convert to fraction form
    443,233,313.20/664,849,969.80 = 419,424,756.40/x
  3. Step 3: Cross multiply
    443,233,313.20x = 664,849,969.80 × 419,424,756.40
  4. Step 4: Simplify right side
    443,233,313.20x = 278,854,536,625,912,320
  5. Step 5: Solve for x
    x = 278,854,536,625,912,320/443,233,313.20
  6. Step 6: Final answer
    x = 629,137,134.60

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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.