Home / 111,059,489.28-166,372,279.68-76,509,788.16

Finding the Fourth Proportional to 111,059,489.28, 166,372,279.68 and 76,509,788.16

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Solution

The fourth proportional to 111,059,489.28, 166,372,279.68 and 76,509,788.16 is: 114,615,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,059,489.28 : 166,372,279.68 = 76,509,788.16 : x
  2. Step 2: Convert to fraction form
    111,059,489.28/166,372,279.68 = 76,509,788.16/x
  3. Step 3: Cross multiply
    111,059,489.28x = 166,372,279.68 × 76,509,788.16
  4. Step 4: Simplify right side
    111,059,489.28x = 12,729,107,874,013,072
  5. Step 5: Solve for x
    x = 12,729,107,874,013,072/111,059,489.28
  6. Step 6: Final answer
    x = 114,615,220.69

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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.