Home / 19,339,947.20-28,974,928.80-15,322,865.60

Finding the Fourth Proportional to 19,339,947.20, 28,974,928.80 and 15,322,865.60

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Solution

The fourth proportional to 19,339,947.20, 28,974,928.80 and 15,322,865.60 is: 22,956,574.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339,947.20 : 28,974,928.80 = 15,322,865.60 : x
  2. Step 2: Convert to fraction form
    19,339,947.20/28,974,928.80 = 15,322,865.60/x
  3. Step 3: Cross multiply
    19,339,947.20x = 28,974,928.80 × 15,322,865.60
  4. Step 4: Simplify right side
    19,339,947.20x = 443,978,939,771,969.25
  5. Step 5: Solve for x
    x = 443,978,939,771,969.25/19,339,947.20
  6. Step 6: Final answer
    x = 22,956,574.55

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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.