Home / 15,538,364.44-21,447,078.42-9,178,790.56

Finding the Fourth Proportional to 15,538,364.44, 21,447,078.42 and 9,178,790.56

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Solution

The fourth proportional to 15,538,364.44, 21,447,078.42 and 9,178,790.56 is: 12,669,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538,364.44 : 21,447,078.42 = 9,178,790.56 : x
  2. Step 2: Convert to fraction form
    15,538,364.44/21,447,078.42 = 9,178,790.56/x
  3. Step 3: Cross multiply
    15,538,364.44x = 21,447,078.42 × 9,178,790.56
  4. Step 4: Simplify right side
    15,538,364.44x = 196,858,240,941,075.75
  5. Step 5: Solve for x
    x = 196,858,240,941,075.75/15,538,364.44
  6. Step 6: Final answer
    x = 12,669,173.88

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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.