Home / 146,659,237.20-220,156,817.40-86,109,080.40

Finding the Fourth Proportional to 146,659,237.20, 220,156,817.40 and 86,109,080.40

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Solution

The fourth proportional to 146,659,237.20, 220,156,817.40 and 86,109,080.40 is: 129,262,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,659,237.20 : 220,156,817.40 = 86,109,080.40 : x
  2. Step 2: Convert to fraction form
    146,659,237.20/220,156,817.40 = 86,109,080.40/x
  3. Step 3: Cross multiply
    146,659,237.20x = 220,156,817.40 × 86,109,080.40
  4. Step 4: Simplify right side
    146,659,237.20x = 18,957,501,090,104,720
  5. Step 5: Solve for x
    x = 18,957,501,090,104,720/146,659,237.20
  6. Step 6: Final answer
    x = 129,262,237.09

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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.