Home / 142,072,107-196,059,507.72-76,882,011

Finding the Fourth Proportional to 142,072,107, 196,059,507.72 and 76,882,011

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Solution

The fourth proportional to 142,072,107, 196,059,507.72 and 76,882,011 is: 106,097,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,072,107 : 196,059,507.72 = 76,882,011 : x
  2. Step 2: Convert to fraction form
    142,072,107/196,059,507.72 = 76,882,011/x
  3. Step 3: Cross multiply
    142,072,107x = 196,059,507.72 × 76,882,011
  4. Step 4: Simplify right side
    142,072,107x = 15,073,449,229,183,624
  5. Step 5: Solve for x
    x = 15,073,449,229,183,624/142,072,107
  6. Step 6: Final answer
    x = 106,097,175.21

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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.