Home / 120,676,291.38-166,538,765.89-71,118,756.58

Finding the Fourth Proportional to 120,676,291.38, 166,538,765.89 and 71,118,756.58

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Solution

The fourth proportional to 120,676,291.38, 166,538,765.89 and 71,118,756.58 is: 98,147,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,676,291.38 : 166,538,765.89 = 71,118,756.58 : x
  2. Step 2: Convert to fraction form
    120,676,291.38/166,538,765.89 = 71,118,756.58/x
  3. Step 3: Cross multiply
    120,676,291.38x = 166,538,765.89 × 71,118,756.58
  4. Step 4: Simplify right side
    120,676,291.38x = 11,844,029,952,464,516
  5. Step 5: Solve for x
    x = 11,844,029,952,464,516/120,676,291.38
  6. Step 6: Final answer
    x = 98,147,115.87

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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.