Home / 620,810,423.20-930,424,378.20-329,816,951.20

Finding the Fourth Proportional to 620,810,423.20, 930,424,378.20 and 329,816,951.20

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Solution

The fourth proportional to 620,810,423.20, 930,424,378.20 and 329,816,951.20 is: 494,305,057.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,810,423.20 : 930,424,378.20 = 329,816,951.20 : x
  2. Step 2: Convert to fraction form
    620,810,423.20/930,424,378.20 = 329,816,951.20/x
  3. Step 3: Cross multiply
    620,810,423.20x = 930,424,378.20 × 329,816,951.20
  4. Step 4: Simplify right side
    620,810,423.20x = 306,869,731,740,079,744
  5. Step 5: Solve for x
    x = 306,869,731,740,079,744/620,810,423.20
  6. Step 6: Final answer
    x = 494,305,057.18

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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.