Home / 146,858,676.20-220,458,162.90-78,834,228.20

Finding the Fourth Proportional to 146,858,676.20, 220,458,162.90 and 78,834,228.20

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Solution

The fourth proportional to 146,858,676.20, 220,458,162.90 and 78,834,228.20 is: 118,342,678.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,858,676.20 : 220,458,162.90 = 78,834,228.20 : x
  2. Step 2: Convert to fraction form
    146,858,676.20/220,458,162.90 = 78,834,228.20/x
  3. Step 3: Cross multiply
    146,858,676.20x = 220,458,162.90 × 78,834,228.20
  4. Step 4: Simplify right side
    146,858,676.20x = 17,379,649,122,611,374
  5. Step 5: Solve for x
    x = 17,379,649,122,611,374/146,858,676.20
  6. Step 6: Final answer
    x = 118,342,678.64

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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.