Home / 31,788,048.30-47,682,072.45-7,853,520.30

Finding the Fourth Proportional to 31,788,048.30, 47,682,072.45 and 7,853,520.30

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Solution

The fourth proportional to 31,788,048.30, 47,682,072.45 and 7,853,520.30 is: 11,780,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788,048.30 : 47,682,072.45 = 7,853,520.30 : x
  2. Step 2: Convert to fraction form
    31,788,048.30/47,682,072.45 = 7,853,520.30/x
  3. Step 3: Cross multiply
    31,788,048.30x = 47,682,072.45 × 7,853,520.30
  4. Step 4: Simplify right side
    31,788,048.30x = 374,472,123,932,145.75
  5. Step 5: Solve for x
    x = 374,472,123,932,145.75/31,788,048.30
  6. Step 6: Final answer
    x = 11,780,280.45

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Double scale
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Similar ratio
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1.5x scale

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.