Home / 789,794,920.80-1,184,692,381.20-381,648,232.80

Finding the Fourth Proportional to 789,794,920.80, 1,184,692,381.20 and 381,648,232.80

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Solution

The fourth proportional to 789,794,920.80, 1,184,692,381.20 and 381,648,232.80 is: 572,472,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,794,920.80 : 1,184,692,381.20 = 381,648,232.80 : x
  2. Step 2: Convert to fraction form
    789,794,920.80/1,184,692,381.20 = 381,648,232.80/x
  3. Step 3: Cross multiply
    789,794,920.80x = 1,184,692,381.20 × 381,648,232.80
  4. Step 4: Simplify right side
    789,794,920.80x = 452,135,753,696,603,968
  5. Step 5: Solve for x
    x = 452,135,753,696,603,968/789,794,920.80
  6. Step 6: Final answer
    x = 572,472,349.20

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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.