Home / 13,319,699.54-18,381,117.78-7,208,128.04

Finding the Fourth Proportional to 13,319,699.54, 18,381,117.78 and 7,208,128.04

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Solution

The fourth proportional to 13,319,699.54, 18,381,117.78 and 7,208,128.04 is: 9,947,180.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,699.54 : 18,381,117.78 = 7,208,128.04 : x
  2. Step 2: Convert to fraction form
    13,319,699.54/18,381,117.78 = 7,208,128.04/x
  3. Step 3: Cross multiply
    13,319,699.54x = 18,381,117.78 × 7,208,128.04
  4. Step 4: Simplify right side
    13,319,699.54x = 132,493,450,384,654.97
  5. Step 5: Solve for x
    x = 132,493,450,384,654.97/13,319,699.54
  6. Step 6: Final answer
    x = 9,947,180.12

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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.