Home / 260,740,433.70-391,110,650.55-78,987,611.70

Finding the Fourth Proportional to 260,740,433.70, 391,110,650.55 and 78,987,611.70

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Solution

The fourth proportional to 260,740,433.70, 391,110,650.55 and 78,987,611.70 is: 118,481,417.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,740,433.70 : 391,110,650.55 = 78,987,611.70 : x
  2. Step 2: Convert to fraction form
    260,740,433.70/391,110,650.55 = 78,987,611.70/x
  3. Step 3: Cross multiply
    260,740,433.70x = 391,110,650.55 × 78,987,611.70
  4. Step 4: Simplify right side
    260,740,433.70x = 30,892,896,197,377,792
  5. Step 5: Solve for x
    x = 30,892,896,197,377,792/260,740,433.70
  6. Step 6: Final answer
    x = 118,481,417.55

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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.