Home / 125,764,638,620.91-188,580,763,503.92-85,981,790,630.84

Finding the Fourth Proportional to 125,764,638,620.91, 188,580,763,503.92 and 85,981,790,630.84

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Solution

The fourth proportional to 125,764,638,620.91, 188,580,763,503.92 and 85,981,790,630.84 is: 128,927,430,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,764,638,620.91 : 188,580,763,503.92 = 85,981,790,630.84 : x
  2. Step 2: Convert to fraction form
    125,764,638,620.91/188,580,763,503.92 = 85,981,790,630.84/x
  3. Step 3: Cross multiply
    125,764,638,620.91x = 188,580,763,503.92 × 85,981,790,630.84
  4. Step 4: Simplify right side
    125,764,638,620.91x = 16,214,511,724,597,061,091,328
  5. Step 5: Solve for x
    x = 16,214,511,724,597,061,091,328/125,764,638,620.91
  6. Step 6: Final answer
    x = 128,927,430,654.59

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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.