Home / 13,438,385.38-18,544,437.59-7,933,533.44

Finding the Fourth Proportional to 13,438,385.38, 18,544,437.59 and 7,933,533.44

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Solution

The fourth proportional to 13,438,385.38, 18,544,437.59 and 7,933,533.44 is: 10,947,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,385.38 : 18,544,437.59 = 7,933,533.44 : x
  2. Step 2: Convert to fraction form
    13,438,385.38/18,544,437.59 = 7,933,533.44/x
  3. Step 3: Cross multiply
    13,438,385.38x = 18,544,437.59 × 7,933,533.44
  4. Step 4: Simplify right side
    13,438,385.38x = 147,122,915,812,452.94
  5. Step 5: Solve for x
    x = 147,122,915,812,452.94/13,438,385.38
  6. Step 6: Final answer
    x = 10,947,960.76

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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.