Home / 714,194,005.28-985,583,766.30-400,928,136.44

Finding the Fourth Proportional to 714,194,005.28, 985,583,766.30 and 400,928,136.44

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Solution

The fourth proportional to 714,194,005.28, 985,583,766.30 and 400,928,136.44 is: 553,278,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,194,005.28 : 985,583,766.30 = 400,928,136.44 : x
  2. Step 2: Convert to fraction form
    714,194,005.28/985,583,766.30 = 400,928,136.44/x
  3. Step 3: Cross multiply
    714,194,005.28x = 985,583,766.30 × 400,928,136.44
  4. Step 4: Simplify right side
    714,194,005.28x = 395,148,262,728,175,424
  5. Step 5: Solve for x
    x = 395,148,262,728,175,424/714,194,005.28
  6. Step 6: Final answer
    x = 553,278,604.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.