Home / 766,860,010.30-1,150,290,015.45-644,416,003.90

Finding the Fourth Proportional to 766,860,010.30, 1,150,290,015.45 and 644,416,003.90

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Solution

The fourth proportional to 766,860,010.30, 1,150,290,015.45 and 644,416,003.90 is: 966,624,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,860,010.30 : 1,150,290,015.45 = 644,416,003.90 : x
  2. Step 2: Convert to fraction form
    766,860,010.30/1,150,290,015.45 = 644,416,003.90/x
  3. Step 3: Cross multiply
    766,860,010.30x = 1,150,290,015.45 × 644,416,003.90
  4. Step 4: Simplify right side
    766,860,010.30x = 741,265,295,082,358,272
  5. Step 5: Solve for x
    x = 741,265,295,082,358,272/766,860,010.30
  6. Step 6: Final answer
    x = 966,624,005.85

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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.