Home / 15,275,743.20-21,075,365.84-8,659,621.92

Finding the Fourth Proportional to 15,275,743.20, 21,075,365.84 and 8,659,621.92

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Solution

The fourth proportional to 15,275,743.20, 21,075,365.84 and 8,659,621.92 is: 11,947,353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275,743.20 : 21,075,365.84 = 8,659,621.92 : x
  2. Step 2: Convert to fraction form
    15,275,743.20/21,075,365.84 = 8,659,621.92/x
  3. Step 3: Cross multiply
    15,275,743.20x = 21,075,365.84 × 8,659,621.92
  4. Step 4: Simplify right side
    15,275,743.20x = 182,504,700,000,083.22
  5. Step 5: Solve for x
    x = 182,504,700,000,083.22/15,275,743.20
  6. Step 6: Final answer
    x = 11,947,353.24

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1.5x scale

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.