Home / 421,015,052.44-631,515,416.10-125,910,847

Finding the Fourth Proportional to 421,015,052.44, 631,515,416.10 and 125,910,847

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Solution

The fourth proportional to 421,015,052.44, 631,515,416.10 and 125,910,847 is: 188,864,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,015,052.44 : 631,515,416.10 = 125,910,847 : x
  2. Step 2: Convert to fraction form
    421,015,052.44/631,515,416.10 = 125,910,847/x
  3. Step 3: Cross multiply
    421,015,052.44x = 631,515,416.10 × 125,910,847
  4. Step 4: Simplify right side
    421,015,052.44x = 79,514,640,934,708,432
  5. Step 5: Solve for x
    x = 79,514,640,934,708,432/421,015,052.44
  6. Step 6: Final answer
    x = 188,864,128.43

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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.