Home / 18,298,288.80-27,415,940.40-11,905,250.40

Finding the Fourth Proportional to 18,298,288.80, 27,415,940.40 and 11,905,250.40

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Solution

The fourth proportional to 18,298,288.80, 27,415,940.40 and 11,905,250.40 is: 17,837,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298,288.80 : 27,415,940.40 = 11,905,250.40 : x
  2. Step 2: Convert to fraction form
    18,298,288.80/27,415,940.40 = 11,905,250.40/x
  3. Step 3: Cross multiply
    18,298,288.80x = 27,415,940.40 × 11,905,250.40
  4. Step 4: Simplify right side
    18,298,288.80x = 326,393,635,413,476.12
  5. Step 5: Solve for x
    x = 326,393,635,413,476.12/18,298,288.80
  6. Step 6: Final answer
    x = 17,837,385.72

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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.