Home / 787,328,118.40-1,180,992,177.60-419,996,099.20

Finding the Fourth Proportional to 787,328,118.40, 1,180,992,177.60 and 419,996,099.20

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Solution

The fourth proportional to 787,328,118.40, 1,180,992,177.60 and 419,996,099.20 is: 629,994,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,328,118.40 : 1,180,992,177.60 = 419,996,099.20 : x
  2. Step 2: Convert to fraction form
    787,328,118.40/1,180,992,177.60 = 419,996,099.20/x
  3. Step 3: Cross multiply
    787,328,118.40x = 1,180,992,177.60 × 419,996,099.20
  4. Step 4: Simplify right side
    787,328,118.40x = 496,012,107,777,713,536
  5. Step 5: Solve for x
    x = 496,012,107,777,713,536/787,328,118.40
  6. Step 6: Final answer
    x = 629,994,148.80

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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.