Home / 260,740,438.20-391,110,657.30-78,987,616.20

Finding the Fourth Proportional to 260,740,438.20, 391,110,657.30 and 78,987,616.20

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Solution

The fourth proportional to 260,740,438.20, 391,110,657.30 and 78,987,616.20 is: 118,481,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,740,438.20 : 391,110,657.30 = 78,987,616.20 : x
  2. Step 2: Convert to fraction form
    260,740,438.20/391,110,657.30 = 78,987,616.20/x
  3. Step 3: Cross multiply
    260,740,438.20x = 391,110,657.30 × 78,987,616.20
  4. Step 4: Simplify right side
    260,740,438.20x = 30,892,898,490,542,132
  5. Step 5: Solve for x
    x = 30,892,898,490,542,132/260,740,438.20
  6. Step 6: Final answer
    x = 118,481,424.30

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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.