Home / 18,932,342.51-28,369,616.31-11,240,841.21

Finding the Fourth Proportional to 18,932,342.51, 28,369,616.31 and 11,240,841.21

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Solution

The fourth proportional to 18,932,342.51, 28,369,616.31 and 11,240,841.21 is: 16,844,104.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932,342.51 : 28,369,616.31 = 11,240,841.21 : x
  2. Step 2: Convert to fraction form
    18,932,342.51/28,369,616.31 = 11,240,841.21/x
  3. Step 3: Cross multiply
    18,932,342.51x = 28,369,616.31 × 11,240,841.21
  4. Step 4: Simplify right side
    18,932,342.51x = 318,898,352,129,336.12
  5. Step 5: Solve for x
    x = 318,898,352,129,336.12/18,932,342.51
  6. Step 6: Final answer
    x = 16,844,104.32

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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.