Home / 800,389,445.12-1,104,571,951.25-443,157,228.57

Finding the Fourth Proportional to 800,389,445.12, 1,104,571,951.25 and 443,157,228.57

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Solution

The fourth proportional to 800,389,445.12, 1,104,571,951.25 and 443,157,228.57 is: 611,576,086.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,389,445.12 : 1,104,571,951.25 = 443,157,228.57 : x
  2. Step 2: Convert to fraction form
    800,389,445.12/1,104,571,951.25 = 443,157,228.57/x
  3. Step 3: Cross multiply
    800,389,445.12x = 1,104,571,951.25 × 443,157,228.57
  4. Step 4: Simplify right side
    800,389,445.12x = 489,499,044,669,891,328
  5. Step 5: Solve for x
    x = 489,499,044,669,891,328/800,389,445.12
  6. Step 6: Final answer
    x = 611,576,086.69

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1.5x scale

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.