Home / 144,584,644.50-199,528,243.11-78,505,684.29

Finding the Fourth Proportional to 144,584,644.50, 199,528,243.11 and 78,505,684.29

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Solution

The fourth proportional to 144,584,644.50, 199,528,243.11 and 78,505,684.29 is: 108,338,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,584,644.50 : 199,528,243.11 = 78,505,684.29 : x
  2. Step 2: Convert to fraction form
    144,584,644.50/199,528,243.11 = 78,505,684.29/x
  3. Step 3: Cross multiply
    144,584,644.50x = 199,528,243.11 × 78,505,684.29
  4. Step 4: Simplify right side
    144,584,644.50x = 15,664,101,260,532,030
  5. Step 5: Solve for x
    x = 15,664,101,260,532,030/144,584,644.50
  6. Step 6: Final answer
    x = 108,338,622.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.