Home / 398,714,353,883.58-550,225,835,253.70-218,273,261,131.80

Finding the Fourth Proportional to 398,714,353,883.58, 550,225,835,253.70 and 218,273,261,131.80

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Solution

The fourth proportional to 398,714,353,883.58, 550,225,835,253.70 and 218,273,261,131.80 is: 301,217,115,085.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,714,353,883.58 : 550,225,835,253.70 = 218,273,261,131.80 : x
  2. Step 2: Convert to fraction form
    398,714,353,883.58/550,225,835,253.70 = 218,273,261,131.80/x
  3. Step 3: Cross multiply
    398,714,353,883.58x = 550,225,835,253.70 × 218,273,261,131.80
  4. Step 4: Simplify right side
    398,714,353,883.58x = 120,099,587,419,793,612,865,536
  5. Step 5: Solve for x
    x = 120,099,587,419,793,612,865,536/398,714,353,883.58
  6. Step 6: Final answer
    x = 301,217,115,085.01

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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.