Home / 939,834,939.24-1,296,993,817.62-516,474,921.60

Finding the Fourth Proportional to 939,834,939.24, 1,296,993,817.62 and 516,474,921.60

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Solution

The fourth proportional to 939,834,939.24, 1,296,993,817.62 and 516,474,921.60 is: 712,747,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,834,939.24 : 1,296,993,817.62 = 516,474,921.60 : x
  2. Step 2: Convert to fraction form
    939,834,939.24/1,296,993,817.62 = 516,474,921.60/x
  3. Step 3: Cross multiply
    939,834,939.24x = 1,296,993,817.62 × 516,474,921.60
  4. Step 4: Simplify right side
    939,834,939.24x = 669,864,780,270,974,208
  5. Step 5: Solve for x
    x = 669,864,780,270,974,208/939,834,939.24
  6. Step 6: Final answer
    x = 712,747,262.63

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1.5x scale

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.