Home / 426,384,052.10-639,576,078.15-419,581,607.30

Finding the Fourth Proportional to 426,384,052.10, 639,576,078.15 and 419,581,607.30

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Solution

The fourth proportional to 426,384,052.10, 639,576,078.15 and 419,581,607.30 is: 629,372,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,384,052.10 : 639,576,078.15 = 419,581,607.30 : x
  2. Step 2: Convert to fraction form
    426,384,052.10/639,576,078.15 = 419,581,607.30/x
  3. Step 3: Cross multiply
    426,384,052.10x = 639,576,078.15 × 419,581,607.30
  4. Step 4: Simplify right side
    426,384,052.10x = 268,354,358,860,807,424
  5. Step 5: Solve for x
    x = 268,354,358,860,807,424/426,384,052.10
  6. Step 6: Final answer
    x = 629,372,410.95

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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.