Home / 526,081,966.40-789,769,912.80-331,993,006.40

Finding the Fourth Proportional to 526,081,966.40, 789,769,912.80 and 331,993,006.40

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Solution

The fourth proportional to 526,081,966.40, 789,769,912.80 and 331,993,006.40 is: 498,397,786.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,081,966.40 : 789,769,912.80 = 331,993,006.40 : x
  2. Step 2: Convert to fraction form
    526,081,966.40/789,769,912.80 = 331,993,006.40/x
  3. Step 3: Cross multiply
    526,081,966.40x = 789,769,912.80 × 331,993,006.40
  4. Step 4: Simplify right side
    526,081,966.40x = 262,198,087,714,737,792
  5. Step 5: Solve for x
    x = 262,198,087,714,737,792/526,081,966.40
  6. Step 6: Final answer
    x = 498,397,786.77

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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.