Home / 620,810,428.20-930,424,385.70-329,816,956.20

Finding the Fourth Proportional to 620,810,428.20, 930,424,385.70 and 329,816,956.20

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Solution

The fourth proportional to 620,810,428.20, 930,424,385.70 and 329,816,956.20 is: 494,305,064.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,810,428.20 : 930,424,385.70 = 329,816,956.20 : x
  2. Step 2: Convert to fraction form
    620,810,428.20/930,424,385.70 = 329,816,956.20/x
  3. Step 3: Cross multiply
    620,810,428.20x = 930,424,385.70 × 329,816,956.20
  4. Step 4: Simplify right side
    620,810,428.20x = 306,869,738,865,828,800
  5. Step 5: Solve for x
    x = 306,869,738,865,828,800/620,810,428.20
  6. Step 6: Final answer
    x = 494,305,064.68

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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.