Home / 12,286,826.80-18,406,739.40-6,605,162.80

Finding the Fourth Proportional to 12,286,826.80, 18,406,739.40 and 6,605,162.80

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Solution

The fourth proportional to 12,286,826.80, 18,406,739.40 and 6,605,162.80 is: 9,895,110.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,826.80 : 18,406,739.40 = 6,605,162.80 : x
  2. Step 2: Convert to fraction form
    12,286,826.80/18,406,739.40 = 6,605,162.80/x
  3. Step 3: Cross multiply
    12,286,826.80x = 18,406,739.40 × 6,605,162.80
  4. Step 4: Simplify right side
    12,286,826.80x = 121,579,510,354,174.31
  5. Step 5: Solve for x
    x = 121,579,510,354,174.31/12,286,826.80
  6. Step 6: Final answer
    x = 9,895,110.62

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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.