Home / 126,105,195.11-189,165,784.12-53,308,408.55

Finding the Fourth Proportional to 126,105,195.11, 189,165,784.12 and 53,308,408.55

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Solution

The fourth proportional to 126,105,195.11, 189,165,784.12 and 53,308,408.55 is: 79,965,991.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,105,195.11 : 189,165,784.12 = 53,308,408.55 : x
  2. Step 2: Convert to fraction form
    126,105,195.11/189,165,784.12 = 53,308,408.55/x
  3. Step 3: Cross multiply
    126,105,195.11x = 189,165,784.12 × 53,308,408.55
  4. Step 4: Simplify right side
    126,105,195.11x = 10,084,126,902,470,964
  5. Step 5: Solve for x
    x = 10,084,126,902,470,964/126,105,195.11
  6. Step 6: Final answer
    x = 79,965,991.04

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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.