Home / 87,377,396.68-120,583,703.61-47,687,100.73

Finding the Fourth Proportional to 87,377,396.68, 120,583,703.61 and 47,687,100.73

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Solution

The fourth proportional to 87,377,396.68, 120,583,703.61 and 47,687,100.73 is: 65,809,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,377,396.68 : 120,583,703.61 = 47,687,100.73 : x
  2. Step 2: Convert to fraction form
    87,377,396.68/120,583,703.61 = 47,687,100.73/x
  3. Step 3: Cross multiply
    87,377,396.68x = 120,583,703.61 × 47,687,100.73
  4. Step 4: Simplify right side
    87,377,396.68x = 5,750,287,220,145,075
  5. Step 5: Solve for x
    x = 5,750,287,220,145,075/87,377,396.68
  6. Step 6: Final answer
    x = 65,809,779.63

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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.