Home / 398,714,358,269.60-550,225,841,256.84-218,273,265,520.28

Finding the Fourth Proportional to 398,714,358,269.60, 550,225,841,256.84 and 218,273,265,520.28

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Solution

The fourth proportional to 398,714,358,269.60, 550,225,841,256.84 and 218,273,265,520.28 is: 301,217,121,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,714,358,269.60 : 550,225,841,256.84 = 218,273,265,520.28 : x
  2. Step 2: Convert to fraction form
    398,714,358,269.60/550,225,841,256.84 = 218,273,265,520.28/x
  3. Step 3: Cross multiply
    398,714,358,269.60x = 550,225,841,256.84 × 218,273,265,520.28
  4. Step 4: Simplify right side
    398,714,358,269.60x = 120,099,591,144,773,668,306,944
  5. Step 5: Solve for x
    x = 120,099,591,144,773,668,306,944/398,714,358,269.60
  6. Step 6: Final answer
    x = 301,217,121,113.97

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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.