Home / 739,621,947.12-1,020,694,804.96-422,075,869.76

Finding the Fourth Proportional to 739,621,947.12, 1,020,694,804.96 and 422,075,869.76

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Solution

The fourth proportional to 739,621,947.12, 1,020,694,804.96 and 422,075,869.76 is: 582,474,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,621,947.12 : 1,020,694,804.96 = 422,075,869.76 : x
  2. Step 2: Convert to fraction form
    739,621,947.12/1,020,694,804.96 = 422,075,869.76/x
  3. Step 3: Cross multiply
    739,621,947.12x = 1,020,694,804.96 × 422,075,869.76
  4. Step 4: Simplify right side
    739,621,947.12x = 430,810,647,563,005,568
  5. Step 5: Solve for x
    x = 430,810,647,563,005,568/739,621,947.12
  6. Step 6: Final answer
    x = 582,474,126.46

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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.