Home / 827,704,857.27-1,241,977,124.21-459,171,781.41

Finding the Fourth Proportional to 827,704,857.27, 1,241,977,124.21 and 459,171,781.41

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Solution

The fourth proportional to 827,704,857.27, 1,241,977,124.21 and 459,171,781.41 is: 688,990,578.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,704,857.27 : 1,241,977,124.21 = 459,171,781.41 : x
  2. Step 2: Convert to fraction form
    827,704,857.27/1,241,977,124.21 = 459,171,781.41/x
  3. Step 3: Cross multiply
    827,704,857.27x = 1,241,977,124.21 × 459,171,781.41
  4. Step 4: Simplify right side
    827,704,857.27x = 570,280,848,593,974,592
  5. Step 5: Solve for x
    x = 570,280,848,593,974,592/827,704,857.27
  6. Step 6: Final answer
    x = 688,990,578.69

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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.