Home / 831,394,949.45-1,247,522,319.38-365,383,359.95

Finding the Fourth Proportional to 831,394,949.45, 1,247,522,319.38 and 365,383,359.95

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Solution

The fourth proportional to 831,394,949.45, 1,247,522,319.38 and 365,383,359.95 is: 548,263,971.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,394,949.45 : 1,247,522,319.38 = 365,383,359.95 : x
  2. Step 2: Convert to fraction form
    831,394,949.45/1,247,522,319.38 = 365,383,359.95/x
  3. Step 3: Cross multiply
    831,394,949.45x = 1,247,522,319.38 × 365,383,359.95
  4. Step 4: Simplify right side
    831,394,949.45x = 455,823,896,662,357,184
  5. Step 5: Solve for x
    x = 455,823,896,662,357,184/831,394,949.45
  6. Step 6: Final answer
    x = 548,263,971.25

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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.