Home / 213,083,128.32-319,639,126.68-74,891,934.60

Finding the Fourth Proportional to 213,083,128.32, 319,639,126.68 and 74,891,934.60

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Solution

The fourth proportional to 213,083,128.32, 319,639,126.68 and 74,891,934.60 is: 112,342,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,083,128.32 : 319,639,126.68 = 74,891,934.60 : x
  2. Step 2: Convert to fraction form
    213,083,128.32/319,639,126.68 = 74,891,934.60/x
  3. Step 3: Cross multiply
    213,083,128.32x = 319,639,126.68 × 74,891,934.60
  4. Step 4: Simplify right side
    213,083,128.32x = 23,938,392,569,721,028
  5. Step 5: Solve for x
    x = 23,938,392,569,721,028/213,083,128.32
  6. Step 6: Final answer
    x = 112,342,975.06

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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.