Home / 213,083,128.88-319,639,127.52-74,891,935.16

Finding the Fourth Proportional to 213,083,128.88, 319,639,127.52 and 74,891,935.16

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Solution

The fourth proportional to 213,083,128.88, 319,639,127.52 and 74,891,935.16 is: 112,342,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,083,128.88 : 319,639,127.52 = 74,891,935.16 : x
  2. Step 2: Convert to fraction form
    213,083,128.88/319,639,127.52 = 74,891,935.16/x
  3. Step 3: Cross multiply
    213,083,128.88x = 319,639,127.52 × 74,891,935.16
  4. Step 4: Simplify right side
    213,083,128.88x = 23,938,392,812,286,464
  5. Step 5: Solve for x
    x = 23,938,392,812,286,464/213,083,128.88
  6. Step 6: Final answer
    x = 112,342,975.90

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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.