Home / 12,286,869.30-18,406,803.15-6,605,205.30

Finding the Fourth Proportional to 12,286,869.30, 18,406,803.15 and 6,605,205.30

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Solution

The fourth proportional to 12,286,869.30, 18,406,803.15 and 6,605,205.30 is: 9,895,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,869.30 : 18,406,803.15 = 6,605,205.30 : x
  2. Step 2: Convert to fraction form
    12,286,869.30/18,406,803.15 = 6,605,205.30/x
  3. Step 3: Cross multiply
    12,286,869.30x = 18,406,803.15 × 6,605,205.30
  4. Step 4: Simplify right side
    12,286,869.30x = 121,580,713,722,436.69
  5. Step 5: Solve for x
    x = 121,580,713,722,436.69/12,286,869.30
  6. Step 6: Final answer
    x = 9,895,174.33

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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.