Home / 213,083,142.92-319,639,148.58-74,891,949.24

Finding the Fourth Proportional to 213,083,142.92, 319,639,148.58 and 74,891,949.24

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Solution

The fourth proportional to 213,083,142.92, 319,639,148.58 and 74,891,949.24 is: 112,342,997.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,083,142.92 : 319,639,148.58 = 74,891,949.24 : x
  2. Step 2: Convert to fraction form
    213,083,142.92/319,639,148.58 = 74,891,949.24/x
  3. Step 3: Cross multiply
    213,083,142.92x = 319,639,148.58 × 74,891,949.24
  4. Step 4: Simplify right side
    213,083,142.92x = 23,938,398,890,570,176
  5. Step 5: Solve for x
    x = 23,938,398,890,570,176/213,083,142.92
  6. Step 6: Final answer
    x = 112,342,997.02

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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.