Home / 209,832,791.49-289,569,531.18-115,744,816.04

Finding the Fourth Proportional to 209,832,791.49, 289,569,531.18 and 115,744,816.04

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Solution

The fourth proportional to 209,832,791.49, 289,569,531.18 and 115,744,816.04 is: 159,727,999.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,832,791.49 : 289,569,531.18 = 115,744,816.04 : x
  2. Step 2: Convert to fraction form
    209,832,791.49/289,569,531.18 = 115,744,816.04/x
  3. Step 3: Cross multiply
    209,832,791.49x = 289,569,531.18 × 115,744,816.04
  4. Step 4: Simplify right side
    209,832,791.49x = 33,516,172,115,770,296
  5. Step 5: Solve for x
    x = 33,516,172,115,770,296/209,832,791.49
  6. Step 6: Final answer
    x = 159,727,999.98

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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.