Home / 144,735,892.39-216,925,971.91-66,907,520.47

Finding the Fourth Proportional to 144,735,892.39, 216,925,971.91 and 66,907,520.47

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Solution

The fourth proportional to 144,735,892.39, 216,925,971.91 and 66,907,520.47 is: 100,279,057.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,735,892.39 : 216,925,971.91 = 66,907,520.47 : x
  2. Step 2: Convert to fraction form
    144,735,892.39/216,925,971.91 = 66,907,520.47/x
  3. Step 3: Cross multiply
    144,735,892.39x = 216,925,971.91 × 66,907,520.47
  4. Step 4: Simplify right side
    144,735,892.39x = 14,513,978,906,042,970
  5. Step 5: Solve for x
    x = 14,513,978,906,042,970/144,735,892.39
  6. Step 6: Final answer
    x = 100,279,057.71

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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.