Home / 12,286,815.30-18,406,722.15-6,605,151.30

Finding the Fourth Proportional to 12,286,815.30, 18,406,722.15 and 6,605,151.30

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Solution

The fourth proportional to 12,286,815.30, 18,406,722.15 and 6,605,151.30 is: 9,895,093.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,815.30 : 18,406,722.15 = 6,605,151.30 : x
  2. Step 2: Convert to fraction form
    12,286,815.30/18,406,722.15 = 6,605,151.30/x
  3. Step 3: Cross multiply
    12,286,815.30x = 18,406,722.15 × 6,605,151.30
  4. Step 4: Simplify right side
    12,286,815.30x = 121,579,184,737,811.28
  5. Step 5: Solve for x
    x = 121,579,184,737,811.28/12,286,815.30
  6. Step 6: Final answer
    x = 9,895,093.38

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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.