Home / 87,377,396.30-120,583,703.09-47,687,100.35

Finding the Fourth Proportional to 87,377,396.30, 120,583,703.09 and 47,687,100.35

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Solution

The fourth proportional to 87,377,396.30, 120,583,703.09 and 47,687,100.35 is: 65,809,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,377,396.30 : 120,583,703.09 = 47,687,100.35 : x
  2. Step 2: Convert to fraction form
    87,377,396.30/120,583,703.09 = 47,687,100.35/x
  3. Step 3: Cross multiply
    87,377,396.30x = 120,583,703.09 × 47,687,100.35
  4. Step 4: Simplify right side
    87,377,396.30x = 5,750,287,150,022,018
  5. Step 5: Solve for x
    x = 5,750,287,150,022,018/87,377,396.30
  6. Step 6: Final answer
    x = 65,809,779.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.