Home / 108,519,098.90-162,778,648.35-100,204,999.70

Finding the Fourth Proportional to 108,519,098.90, 162,778,648.35 and 100,204,999.70

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Solution

The fourth proportional to 108,519,098.90, 162,778,648.35 and 100,204,999.70 is: 150,307,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,519,098.90 : 162,778,648.35 = 100,204,999.70 : x
  2. Step 2: Convert to fraction form
    108,519,098.90/162,778,648.35 = 100,204,999.70/x
  3. Step 3: Cross multiply
    108,519,098.90x = 162,778,648.35 × 100,204,999.70
  4. Step 4: Simplify right side
    108,519,098.90x = 16,311,234,409,078,156
  5. Step 5: Solve for x
    x = 16,311,234,409,078,156/108,519,098.90
  6. Step 6: Final answer
    x = 150,307,499.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.