Home / 918,571,086.60-1,377,856,629.90-823,868,300.40

Finding the Fourth Proportional to 918,571,086.60, 1,377,856,629.90 and 823,868,300.40

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Solution

The fourth proportional to 918,571,086.60, 1,377,856,629.90 and 823,868,300.40 is: 1,235,802,450.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,571,086.60 : 1,377,856,629.90 = 823,868,300.40 : x
  2. Step 2: Convert to fraction form
    918,571,086.60/1,377,856,629.90 = 823,868,300.40/x
  3. Step 3: Cross multiply
    918,571,086.60x = 1,377,856,629.90 × 823,868,300.40
  4. Step 4: Simplify right side
    918,571,086.60x = 1,135,172,399,870,584,832
  5. Step 5: Solve for x
    x = 1,135,172,399,870,584,832/918,571,086.60
  6. Step 6: Final answer
    x = 1,235,802,450.60

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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.