Home / 285,193,234.80-427,789,852.20-132,138,226.80

Finding the Fourth Proportional to 285,193,234.80, 427,789,852.20 and 132,138,226.80

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Solution

The fourth proportional to 285,193,234.80, 427,789,852.20 and 132,138,226.80 is: 198,207,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,193,234.80 : 427,789,852.20 = 132,138,226.80 : x
  2. Step 2: Convert to fraction form
    285,193,234.80/427,789,852.20 = 132,138,226.80/x
  3. Step 3: Cross multiply
    285,193,234.80x = 427,789,852.20 × 132,138,226.80
  4. Step 4: Simplify right side
    285,193,234.80x = 56,527,392,512,742,080
  5. Step 5: Solve for x
    x = 56,527,392,512,742,080/285,193,234.80
  6. Step 6: Final answer
    x = 198,207,340.20

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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.