Home / 121,863,534.82-168,171,678.06-69,653,691.49

Finding the Fourth Proportional to 121,863,534.82, 168,171,678.06 and 69,653,691.49

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Solution

The fourth proportional to 121,863,534.82, 168,171,678.06 and 69,653,691.49 is: 96,122,094.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863,534.82 : 168,171,678.06 = 69,653,691.49 : x
  2. Step 2: Convert to fraction form
    121,863,534.82/168,171,678.06 = 69,653,691.49/x
  3. Step 3: Cross multiply
    121,863,534.82x = 168,171,678.06 × 69,653,691.49
  4. Step 4: Simplify right side
    121,863,534.82x = 11,713,778,180,580,532
  5. Step 5: Solve for x
    x = 11,713,778,180,580,532/121,863,534.82
  6. Step 6: Final answer
    x = 96,122,094.26

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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.