Home / 12,097,187.80-18,145,781.70-11,509,322.20

Finding the Fourth Proportional to 12,097,187.80, 18,145,781.70 and 11,509,322.20

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Solution

The fourth proportional to 12,097,187.80, 18,145,781.70 and 11,509,322.20 is: 17,263,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,187.80 : 18,145,781.70 = 11,509,322.20 : x
  2. Step 2: Convert to fraction form
    12,097,187.80/18,145,781.70 = 11,509,322.20/x
  3. Step 3: Cross multiply
    12,097,187.80x = 18,145,781.70 × 11,509,322.20
  4. Step 4: Simplify right side
    12,097,187.80x = 208,845,648,156,163.72
  5. Step 5: Solve for x
    x = 208,845,648,156,163.72/12,097,187.80
  6. Step 6: Final answer
    x = 17,263,983.30

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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.