Home / 121,846,372.74-168,147,014.82-66,091,654.50

Finding the Fourth Proportional to 121,846,372.74, 168,147,014.82 and 66,091,654.50

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Solution

The fourth proportional to 121,846,372.74, 168,147,014.82 and 66,091,654.50 is: 91,205,951.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,846,372.74 : 168,147,014.82 = 66,091,654.50 : x
  2. Step 2: Convert to fraction form
    121,846,372.74/168,147,014.82 = 66,091,654.50/x
  3. Step 3: Cross multiply
    121,846,372.74x = 168,147,014.82 × 66,091,654.50
  4. Step 4: Simplify right side
    121,846,372.74x = 11,113,114,408,689,820
  5. Step 5: Solve for x
    x = 11,113,114,408,689,820/121,846,372.74
  6. Step 6: Final answer
    x = 91,205,951.88

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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.