Home / 800,297,342.12-1,104,386,612.58-443,081,039.72

Finding the Fourth Proportional to 800,297,342.12, 1,104,386,612.58 and 443,081,039.72

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Solution

The fourth proportional to 800,297,342.12, 1,104,386,612.58 and 443,081,039.72 is: 611,438,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,297,342.12 : 1,104,386,612.58 = 443,081,039.72 : x
  2. Step 2: Convert to fraction form
    800,297,342.12/1,104,386,612.58 = 443,081,039.72/x
  3. Step 3: Cross multiply
    800,297,342.12x = 1,104,386,612.58 × 443,081,039.72
  4. Step 4: Simplify right side
    800,297,342.12x = 489,332,768,554,795,200
  5. Step 5: Solve for x
    x = 489,332,768,554,795,200/800,297,342.12
  6. Step 6: Final answer
    x = 611,438,702.59

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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.