Home / 30,981,790.76-42,754,634.93-17,042,845.82

Finding the Fourth Proportional to 30,981,790.76, 42,754,634.93 and 17,042,845.82

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Solution

The fourth proportional to 30,981,790.76, 42,754,634.93 and 17,042,845.82 is: 23,518,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981,790.76 : 42,754,634.93 = 17,042,845.82 : x
  2. Step 2: Convert to fraction form
    30,981,790.76/42,754,634.93 = 17,042,845.82/x
  3. Step 3: Cross multiply
    30,981,790.76x = 42,754,634.93 × 17,042,845.82
  4. Step 4: Simplify right side
    30,981,790.76x = 728,660,650,988,603.38
  5. Step 5: Solve for x
    x = 728,660,650,988,603.38/30,981,790.76
  6. Step 6: Final answer
    x = 23,518,997.23

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1.5x scale

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.