Home / 30,981,387.64-42,754,078.84-17,042,443.32

Finding the Fourth Proportional to 30,981,387.64, 42,754,078.84 and 17,042,443.32

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Solution

The fourth proportional to 30,981,387.64, 42,754,078.84 and 17,042,443.32 is: 23,518,441.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981,387.64 : 42,754,078.84 = 17,042,443.32 : x
  2. Step 2: Convert to fraction form
    30,981,387.64/42,754,078.84 = 17,042,443.32/x
  3. Step 3: Cross multiply
    30,981,387.64x = 42,754,078.84 × 17,042,443.32
  4. Step 4: Simplify right side
    30,981,387.64x = 728,633,965,329,511.38
  5. Step 5: Solve for x
    x = 728,633,965,329,511.38/30,981,387.64
  6. Step 6: Final answer
    x = 23,518,441.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.