Home / 146,188,934.40-219,212,542.80-81,423,991.20

Finding the Fourth Proportional to 146,188,934.40, 219,212,542.80 and 81,423,991.20

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Solution

The fourth proportional to 146,188,934.40, 219,212,542.80 and 81,423,991.20 is: 122,096,520.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,188,934.40 : 219,212,542.80 = 81,423,991.20 : x
  2. Step 2: Convert to fraction form
    146,188,934.40/219,212,542.80 = 81,423,991.20/x
  3. Step 3: Cross multiply
    146,188,934.40x = 219,212,542.80 × 81,423,991.20
  4. Step 4: Simplify right side
    146,188,934.40x = 17,849,160,155,876,824
  5. Step 5: Solve for x
    x = 17,849,160,155,876,824/146,188,934.40
  6. Step 6: Final answer
    x = 122,096,520.02

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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.