Home / 285,193,077.80-427,789,616.70-132,138,069.80

Finding the Fourth Proportional to 285,193,077.80, 427,789,616.70 and 132,138,069.80

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Solution

The fourth proportional to 285,193,077.80, 427,789,616.70 and 132,138,069.80 is: 198,207,104.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,193,077.80 : 427,789,616.70 = 132,138,069.80 : x
  2. Step 2: Convert to fraction form
    285,193,077.80/427,789,616.70 = 132,138,069.80/x
  3. Step 3: Cross multiply
    285,193,077.80x = 427,789,616.70 × 132,138,069.80
  4. Step 4: Simplify right side
    285,193,077.80x = 56,527,294,231,219,840
  5. Step 5: Solve for x
    x = 56,527,294,231,219,840/285,193,077.80
  6. Step 6: Final answer
    x = 198,207,104.70

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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.