Home / 146,579,680.20-220,037,481.90-86,029,523.40

Finding the Fourth Proportional to 146,579,680.20, 220,037,481.90 and 86,029,523.40

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Solution

The fourth proportional to 146,579,680.20, 220,037,481.90 and 86,029,523.40 is: 129,142,863.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,579,680.20 : 220,037,481.90 = 86,029,523.40 : x
  2. Step 2: Convert to fraction form
    146,579,680.20/220,037,481.90 = 86,029,523.40/x
  3. Step 3: Cross multiply
    146,579,680.20x = 220,037,481.90 × 86,029,523.40
  4. Step 4: Simplify right side
    146,579,680.20x = 18,929,719,697,993,128
  5. Step 5: Solve for x
    x = 18,929,719,697,993,128/146,579,680.20
  6. Step 6: Final answer
    x = 129,142,863.95

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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.