Home / 800,923,876.76-1,105,274,790.35-443,714,865.45

Finding the Fourth Proportional to 800,923,876.76, 1,105,274,790.35 and 443,714,865.45

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Solution

The fourth proportional to 800,923,876.76, 1,105,274,790.35 and 443,714,865.45 is: 612,326,425.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,923,876.76 : 1,105,274,790.35 = 443,714,865.45 : x
  2. Step 2: Convert to fraction form
    800,923,876.76/1,105,274,790.35 = 443,714,865.45/x
  3. Step 3: Cross multiply
    800,923,876.76x = 1,105,274,790.35 × 443,714,865.45
  4. Step 4: Simplify right side
    800,923,876.76x = 490,426,854,883,208,640
  5. Step 5: Solve for x
    x = 490,426,854,883,208,640/800,923,876.76
  6. Step 6: Final answer
    x = 612,326,425.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.