Home / 12,127,907.80-18,191,861.70-11,251,030.15

Finding the Fourth Proportional to 12,127,907.80, 18,191,861.70 and 11,251,030.15

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Solution

The fourth proportional to 12,127,907.80, 18,191,861.70 and 11,251,030.15 is: 16,876,545.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,907.80 : 18,191,861.70 = 11,251,030.15 : x
  2. Step 2: Convert to fraction form
    12,127,907.80/18,191,861.70 = 11,251,030.15/x
  3. Step 3: Cross multiply
    12,127,907.80x = 18,191,861.70 × 11,251,030.15
  4. Step 4: Simplify right side
    12,127,907.80x = 204,677,184,471,330.25
  5. Step 5: Solve for x
    x = 204,677,184,471,330.25/12,127,907.80
  6. Step 6: Final answer
    x = 16,876,545.23

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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.