Home / 739,621,447.39-1,020,694,119.42-422,075,371.20

Finding the Fourth Proportional to 739,621,447.39, 1,020,694,119.42 and 422,075,371.20

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Solution

The fourth proportional to 739,621,447.39, 1,020,694,119.42 and 422,075,371.20 is: 582,473,440.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,621,447.39 : 1,020,694,119.42 = 422,075,371.20 : x
  2. Step 2: Convert to fraction form
    739,621,447.39/1,020,694,119.42 = 422,075,371.20/x
  3. Step 3: Cross multiply
    739,621,447.39x = 1,020,694,119.42 × 422,075,371.20
  4. Step 4: Simplify right side
    739,621,447.39x = 430,809,849,335,853,568
  5. Step 5: Solve for x
    x = 430,809,849,335,853,568/739,621,447.39
  6. Step 6: Final answer
    x = 582,473,440.78

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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.