Home / 939,834,942.24-1,296,993,821.76-516,474,924.60

Finding the Fourth Proportional to 939,834,942.24, 1,296,993,821.76 and 516,474,924.60

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Solution

The fourth proportional to 939,834,942.24, 1,296,993,821.76 and 516,474,924.60 is: 712,747,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,834,942.24 : 1,296,993,821.76 = 516,474,924.60 : x
  2. Step 2: Convert to fraction form
    939,834,942.24/1,296,993,821.76 = 516,474,924.60/x
  3. Step 3: Cross multiply
    939,834,942.24x = 1,296,993,821.76 × 516,474,924.60
  4. Step 4: Simplify right side
    939,834,942.24x = 669,864,786,300,161,920
  5. Step 5: Solve for x
    x = 669,864,786,300,161,920/939,834,942.24
  6. Step 6: Final answer
    x = 712,747,266.77

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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.