Home / 30,981,363.76-42,754,046.04-17,042,419.48

Finding the Fourth Proportional to 30,981,363.76, 42,754,046.04 and 17,042,419.48

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Solution

The fourth proportional to 30,981,363.76, 42,754,046.04 and 17,042,419.48 is: 23,518,409.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981,363.76 : 42,754,046.04 = 17,042,419.48 : x
  2. Step 2: Convert to fraction form
    30,981,363.76/42,754,046.04 = 17,042,419.48/x
  3. Step 3: Cross multiply
    30,981,363.76x = 42,754,046.04 × 17,042,419.48
  4. Step 4: Simplify right side
    30,981,363.76x = 728,632,387,080,912.88
  5. Step 5: Solve for x
    x = 728,632,387,080,912.88/30,981,363.76
  6. Step 6: Final answer
    x = 23,518,409.09

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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.