Home / 21,096,736.80-31,561,124.40-18,288,045.60

Finding the Fourth Proportional to 21,096,736.80, 31,561,124.40 and 18,288,045.60

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Solution

The fourth proportional to 21,096,736.80, 31,561,124.40 and 18,288,045.60 is: 27,359,268.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096,736.80 : 31,561,124.40 = 18,288,045.60 : x
  2. Step 2: Convert to fraction form
    21,096,736.80/31,561,124.40 = 18,288,045.60/x
  3. Step 3: Cross multiply
    21,096,736.80x = 31,561,124.40 × 18,288,045.60
  4. Step 4: Simplify right side
    21,096,736.80x = 577,191,282,214,472.62
  5. Step 5: Solve for x
    x = 577,191,282,214,472.62/21,096,736.80
  6. Step 6: Final answer
    x = 27,359,268.29

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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.