Home / 213,083,129.32-319,639,128.18-74,891,935.60

Finding the Fourth Proportional to 213,083,129.32, 319,639,128.18 and 74,891,935.60

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Solution

The fourth proportional to 213,083,129.32, 319,639,128.18 and 74,891,935.60 is: 112,342,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,083,129.32 : 319,639,128.18 = 74,891,935.60 : x
  2. Step 2: Convert to fraction form
    213,083,129.32/319,639,128.18 = 74,891,935.60/x
  3. Step 3: Cross multiply
    213,083,129.32x = 319,639,128.18 × 74,891,935.60
  4. Step 4: Simplify right side
    213,083,129.32x = 23,938,393,002,896,704
  5. Step 5: Solve for x
    x = 23,938,393,002,896,704/213,083,129.32
  6. Step 6: Final answer
    x = 112,342,976.56

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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.