Home / 130,309,021.80-179,829,961.79-76,667,427.35

Finding the Fourth Proportional to 130,309,021.80, 179,829,961.79 and 76,667,427.35

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Solution

The fourth proportional to 130,309,021.80, 179,829,961.79 and 76,667,427.35 is: 105,803,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,309,021.80 : 179,829,961.79 = 76,667,427.35 : x
  2. Step 2: Convert to fraction form
    130,309,021.80/179,829,961.79 = 76,667,427.35/x
  3. Step 3: Cross multiply
    130,309,021.80x = 179,829,961.79 × 76,667,427.35
  4. Step 4: Simplify right side
    130,309,021.80x = 13,787,100,530,279,976
  5. Step 5: Solve for x
    x = 13,787,100,530,279,976/130,309,021.80
  6. Step 6: Final answer
    x = 105,803,115.85

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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.