Home / 398,714,353,884.58-550,225,835,255.08-218,273,261,132.80

Finding the Fourth Proportional to 398,714,353,884.58, 550,225,835,255.08 and 218,273,261,132.80

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Solution

The fourth proportional to 398,714,353,884.58, 550,225,835,255.08 and 218,273,261,132.80 is: 301,217,115,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,714,353,884.58 : 550,225,835,255.08 = 218,273,261,132.80 : x
  2. Step 2: Convert to fraction form
    398,714,353,884.58/550,225,835,255.08 = 218,273,261,132.80/x
  3. Step 3: Cross multiply
    398,714,353,884.58x = 550,225,835,255.08 × 218,273,261,132.80
  4. Step 4: Simplify right side
    398,714,353,884.58x = 120,099,587,420,645,056,577,536
  5. Step 5: Solve for x
    x = 120,099,587,420,645,056,577,536/398,714,353,884.58
  6. Step 6: Final answer
    x = 301,217,115,086.39

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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.