Home / 331,776,019.20-497,664,028.80-263,247,686.40

Finding the Fourth Proportional to 331,776,019.20, 497,664,028.80 and 263,247,686.40

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Solution

The fourth proportional to 331,776,019.20, 497,664,028.80 and 263,247,686.40 is: 394,871,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,776,019.20 : 497,664,028.80 = 263,247,686.40 : x
  2. Step 2: Convert to fraction form
    331,776,019.20/497,664,028.80 = 263,247,686.40/x
  3. Step 3: Cross multiply
    331,776,019.20x = 497,664,028.80 × 263,247,686.40
  4. Step 4: Simplify right side
    331,776,019.20x = 131,008,904,186,102,976
  5. Step 5: Solve for x
    x = 131,008,904,186,102,976/331,776,019.20
  6. Step 6: Final answer
    x = 394,871,529.60

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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.