Home / 426,384,049.10-639,576,073.65-419,581,604.30

Finding the Fourth Proportional to 426,384,049.10, 639,576,073.65 and 419,581,604.30

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Solution

The fourth proportional to 426,384,049.10, 639,576,073.65 and 419,581,604.30 is: 629,372,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,384,049.10 : 639,576,073.65 = 419,581,604.30 : x
  2. Step 2: Convert to fraction form
    426,384,049.10/639,576,073.65 = 419,581,604.30/x
  3. Step 3: Cross multiply
    426,384,049.10x = 639,576,073.65 × 419,581,604.30
  4. Step 4: Simplify right side
    426,384,049.10x = 268,354,355,053,961,952
  5. Step 5: Solve for x
    x = 268,354,355,053,961,952/426,384,049.10
  6. Step 6: Final answer
    x = 629,372,406.45

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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.