Home / 860,150,416.12-1,290,221,941.79-238,363,872.03

Finding the Fourth Proportional to 860,150,416.12, 1,290,221,941.79 and 238,363,872.03

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Solution

The fourth proportional to 860,150,416.12, 1,290,221,941.79 and 238,363,872.03 is: 357,544,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,150,416.12 : 1,290,221,941.79 = 238,363,872.03 : x
  2. Step 2: Convert to fraction form
    860,150,416.12/1,290,221,941.79 = 238,363,872.03/x
  3. Step 3: Cross multiply
    860,150,416.12x = 1,290,221,941.79 × 238,363,872.03
  4. Step 4: Simplify right side
    860,150,416.12x = 307,542,297,823,725,568
  5. Step 5: Solve for x
    x = 307,542,297,823,725,568/860,150,416.12
  6. Step 6: Final answer
    x = 357,544,787.59

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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.