Home / 721,504,343.80-1,082,256,515.70-618,192,213.40

Finding the Fourth Proportional to 721,504,343.80, 1,082,256,515.70 and 618,192,213.40

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Solution

The fourth proportional to 721,504,343.80, 1,082,256,515.70 and 618,192,213.40 is: 927,288,320.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,504,343.80 : 1,082,256,515.70 = 618,192,213.40 : x
  2. Step 2: Convert to fraction form
    721,504,343.80/1,082,256,515.70 = 618,192,213.40/x
  3. Step 3: Cross multiply
    721,504,343.80x = 1,082,256,515.70 × 618,192,213.40
  4. Step 4: Simplify right side
    721,504,343.80x = 669,042,550,907,154,816
  5. Step 5: Solve for x
    x = 669,042,550,907,154,816/721,504,343.80
  6. Step 6: Final answer
    x = 927,288,320.10

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1.5x scale

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.