Home / 121,863,536.76-168,171,680.73-69,653,693.43

Finding the Fourth Proportional to 121,863,536.76, 168,171,680.73 and 69,653,693.43

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Solution

The fourth proportional to 121,863,536.76, 168,171,680.73 and 69,653,693.43 is: 96,122,096.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,863,536.76 : 168,171,680.73 = 69,653,693.43 : x
  2. Step 2: Convert to fraction form
    121,863,536.76/168,171,680.73 = 69,653,693.43/x
  3. Step 3: Cross multiply
    121,863,536.76x = 168,171,680.73 × 69,653,693.43
  4. Step 4: Simplify right side
    121,863,536.76x = 11,713,778,693,175,260
  5. Step 5: Solve for x
    x = 11,713,778,693,175,260/121,863,536.76
  6. Step 6: Final answer
    x = 96,122,096.93

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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.