Home / 12,127,811.40-18,149,726.70-11,120,041.80

Finding the Fourth Proportional to 12,127,811.40, 18,149,726.70 and 11,120,041.80

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Solution

The fourth proportional to 12,127,811.40, 18,149,726.70 and 11,120,041.80 is: 16,641,561.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,811.40 : 18,149,726.70 = 11,120,041.80 : x
  2. Step 2: Convert to fraction form
    12,127,811.40/18,149,726.70 = 11,120,041.80/x
  3. Step 3: Cross multiply
    12,127,811.40x = 18,149,726.70 × 11,120,041.80
  4. Step 4: Simplify right side
    12,127,811.40x = 201,825,719,562,576.06
  5. Step 5: Solve for x
    x = 201,825,719,562,576.06/12,127,811.40
  6. Step 6: Final answer
    x = 16,641,561.52

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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.