Home / 146,768,124.70-220,320,148.65-86,217,967.90

Finding the Fourth Proportional to 146,768,124.70, 220,320,148.65 and 86,217,967.90

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Solution

The fourth proportional to 146,768,124.70, 220,320,148.65 and 86,217,967.90 is: 129,425,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,768,124.70 : 220,320,148.65 = 86,217,967.90 : x
  2. Step 2: Convert to fraction form
    146,768,124.70/220,320,148.65 = 86,217,967.90/x
  3. Step 3: Cross multiply
    146,768,124.70x = 220,320,148.65 × 86,217,967.90
  4. Step 4: Simplify right side
    146,768,124.70x = 18,995,555,504,028,932
  5. Step 5: Solve for x
    x = 18,995,555,504,028,932/146,768,124.70
  6. Step 6: Final answer
    x = 129,425,619.79

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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.