Home / 12,519,520.76-17,278,464.30-7,362,633.08

Finding the Fourth Proportional to 12,519,520.76, 17,278,464.30 and 7,362,633.08

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Solution

The fourth proportional to 12,519,520.76, 17,278,464.30 and 7,362,633.08 is: 10,161,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519,520.76 : 17,278,464.30 = 7,362,633.08 : x
  2. Step 2: Convert to fraction form
    12,519,520.76/17,278,464.30 = 7,362,633.08/x
  3. Step 3: Cross multiply
    12,519,520.76x = 17,278,464.30 × 7,362,633.08
  4. Step 4: Simplify right side
    12,519,520.76x = 127,214,992,826,779.05
  5. Step 5: Solve for x
    x = 127,214,992,826,779.05/12,519,520.76
  6. Step 6: Final answer
    x = 10,161,330.87

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Double scale
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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.