Home / 394,257,056.40-591,426,149.40-148,820,420.88

Finding the Fourth Proportional to 394,257,056.40, 591,426,149.40 and 148,820,420.88

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Solution

The fourth proportional to 394,257,056.40, 591,426,149.40 and 148,820,420.88 is: 223,245,943.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,257,056.40 : 591,426,149.40 = 148,820,420.88 : x
  2. Step 2: Convert to fraction form
    394,257,056.40/591,426,149.40 = 148,820,420.88/x
  3. Step 3: Cross multiply
    394,257,056.40x = 591,426,149.40 × 148,820,420.88
  4. Step 4: Simplify right side
    394,257,056.40x = 88,016,288,473,145,760
  5. Step 5: Solve for x
    x = 88,016,288,473,145,760/394,257,056.40
  6. Step 6: Final answer
    x = 223,245,943.34

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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.