Home / 121,863,537.78-168,171,682.14-69,653,694.47

Finding the Fourth Proportional to 121,863,537.78, 168,171,682.14 and 69,653,694.47

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Solution

The fourth proportional to 121,863,537.78, 168,171,682.14 and 69,653,694.47 is: 96,122,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863,537.78 : 168,171,682.14 = 69,653,694.47 : x
  2. Step 2: Convert to fraction form
    121,863,537.78/168,171,682.14 = 69,653,694.47/x
  3. Step 3: Cross multiply
    121,863,537.78x = 168,171,682.14 × 69,653,694.47
  4. Step 4: Simplify right side
    121,863,537.78x = 11,713,778,966,285,514
  5. Step 5: Solve for x
    x = 11,713,778,966,285,514/121,863,537.78
  6. Step 6: Final answer
    x = 96,122,098.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.