Home / 213,208,578.51-319,819,383.01-73,147,071.07

Finding the Fourth Proportional to 213,208,578.51, 319,819,383.01 and 73,147,071.07

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Solution

The fourth proportional to 213,208,578.51, 319,819,383.01 and 73,147,071.07 is: 109,722,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,208,578.51 : 319,819,383.01 = 73,147,071.07 : x
  2. Step 2: Convert to fraction form
    213,208,578.51/319,819,383.01 = 73,147,071.07/x
  3. Step 3: Cross multiply
    213,208,578.51x = 319,819,383.01 × 73,147,071.07
  4. Step 4: Simplify right side
    213,208,578.51x = 23,393,851,137,204,304
  5. Step 5: Solve for x
    x = 23,393,851,137,204,304/213,208,578.51
  6. Step 6: Final answer
    x = 109,722,841.83

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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.