Home / 804,816,013.80-1,207,224,020.70-287,263,338.60

Finding the Fourth Proportional to 804,816,013.80, 1,207,224,020.70 and 287,263,338.60

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Solution

The fourth proportional to 804,816,013.80, 1,207,224,020.70 and 287,263,338.60 is: 430,895,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,816,013.80 : 1,207,224,020.70 = 287,263,338.60 : x
  2. Step 2: Convert to fraction form
    804,816,013.80/1,207,224,020.70 = 287,263,338.60/x
  3. Step 3: Cross multiply
    804,816,013.80x = 1,207,224,020.70 × 287,263,338.60
  4. Step 4: Simplify right side
    804,816,013.80x = 346,791,202,624,397,568
  5. Step 5: Solve for x
    x = 346,791,202,624,397,568/804,816,013.80
  6. Step 6: Final answer
    x = 430,895,007.90

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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.