Home / 13,320,322.92-18,382,045.41-7,208,751.42

Finding the Fourth Proportional to 13,320,322.92, 18,382,045.41 and 7,208,751.42

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Solution

The fourth proportional to 13,320,322.92, 18,382,045.41 and 7,208,751.42 is: 9,948,076.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,322.92 : 18,382,045.41 = 7,208,751.42 : x
  2. Step 2: Convert to fraction form
    13,320,322.92/18,382,045.41 = 7,208,751.42/x
  3. Step 3: Cross multiply
    13,320,322.92x = 18,382,045.41 × 7,208,751.42
  4. Step 4: Simplify right side
    13,320,322.92x = 132,511,595,951,841.98
  5. Step 5: Solve for x
    x = 132,511,595,951,841.98/13,320,322.92
  6. Step 6: Final answer
    x = 9,948,076.84

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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.