Home / 20,997,728.20-31,496,592.30-5,851,659.70

Finding the Fourth Proportional to 20,997,728.20, 31,496,592.30 and 5,851,659.70

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Solution

The fourth proportional to 20,997,728.20, 31,496,592.30 and 5,851,659.70 is: 8,777,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,997,728.20 : 31,496,592.30 = 5,851,659.70 : x
  2. Step 2: Convert to fraction form
    20,997,728.20/31,496,592.30 = 5,851,659.70/x
  3. Step 3: Cross multiply
    20,997,728.20x = 31,496,592.30 × 5,851,659.70
  4. Step 4: Simplify right side
    20,997,728.20x = 184,307,339,849,240.31
  5. Step 5: Solve for x
    x = 184,307,339,849,240.31/20,997,728.20
  6. Step 6: Final answer
    x = 8,777,489.55

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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.