Home / 146,858,671.20-220,458,155.40-78,834,223.20

Finding the Fourth Proportional to 146,858,671.20, 220,458,155.40 and 78,834,223.20

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Solution

The fourth proportional to 146,858,671.20, 220,458,155.40 and 78,834,223.20 is: 118,342,671.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,858,671.20 : 220,458,155.40 = 78,834,223.20 : x
  2. Step 2: Convert to fraction form
    146,858,671.20/220,458,155.40 = 78,834,223.20/x
  3. Step 3: Cross multiply
    146,858,671.20x = 220,458,155.40 × 78,834,223.20
  4. Step 4: Simplify right side
    146,858,671.20x = 17,379,647,429,063,886
  5. Step 5: Solve for x
    x = 17,379,647,429,063,886/146,858,671.20
  6. Step 6: Final answer
    x = 118,342,671.13

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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.