Home / 80,415,060.30-120,622,590.45-67,022,747.10

Finding the Fourth Proportional to 80,415,060.30, 120,622,590.45 and 67,022,747.10

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Solution

The fourth proportional to 80,415,060.30, 120,622,590.45 and 67,022,747.10 is: 100,534,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,415,060.30 : 120,622,590.45 = 67,022,747.10 : x
  2. Step 2: Convert to fraction form
    80,415,060.30/120,622,590.45 = 67,022,747.10/x
  3. Step 3: Cross multiply
    80,415,060.30x = 120,622,590.45 × 67,022,747.10
  4. Step 4: Simplify right side
    80,415,060.30x = 8,084,457,374,277,226
  5. Step 5: Solve for x
    x = 8,084,457,374,277,226/80,415,060.30
  6. Step 6: Final answer
    x = 100,534,120.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.