Home / 394,970,972.67-545,426,326.22-295,679,340.45

Finding the Fourth Proportional to 394,970,972.67, 545,426,326.22 and 295,679,340.45

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Solution

The fourth proportional to 394,970,972.67, 545,426,326.22 and 295,679,340.45 is: 408,311,768.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,970,972.67 : 545,426,326.22 = 295,679,340.45 : x
  2. Step 2: Convert to fraction form
    394,970,972.67/545,426,326.22 = 295,679,340.45/x
  3. Step 3: Cross multiply
    394,970,972.67x = 545,426,326.22 × 295,679,340.45
  4. Step 4: Simplify right side
    394,970,972.67x = 161,271,296,399,317,760
  5. Step 5: Solve for x
    x = 161,271,296,399,317,760/394,970,972.67
  6. Step 6: Final answer
    x = 408,311,768.61

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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.