Home / 440,118,601.80-660,177,902.70-310,978,438.80

Finding the Fourth Proportional to 440,118,601.80, 660,177,902.70 and 310,978,438.80

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Solution

The fourth proportional to 440,118,601.80, 660,177,902.70 and 310,978,438.80 is: 466,467,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,118,601.80 : 660,177,902.70 = 310,978,438.80 : x
  2. Step 2: Convert to fraction form
    440,118,601.80/660,177,902.70 = 310,978,438.80/x
  3. Step 3: Cross multiply
    440,118,601.80x = 660,177,902.70 × 310,978,438.80
  4. Step 4: Simplify right side
    440,118,601.80x = 205,301,093,511,904,320
  5. Step 5: Solve for x
    x = 205,301,093,511,904,320/440,118,601.80
  6. Step 6: Final answer
    x = 466,467,658.20

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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.