Home / 679,957,893.70-1,019,936,840.55-220,225,999.30

Finding the Fourth Proportional to 679,957,893.70, 1,019,936,840.55 and 220,225,999.30

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Solution

The fourth proportional to 679,957,893.70, 1,019,936,840.55 and 220,225,999.30 is: 330,338,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,957,893.70 : 1,019,936,840.55 = 220,225,999.30 : x
  2. Step 2: Convert to fraction form
    679,957,893.70/1,019,936,840.55 = 220,225,999.30/x
  3. Step 3: Cross multiply
    679,957,893.70x = 1,019,936,840.55 × 220,225,999.30
  4. Step 4: Simplify right side
    679,957,893.70x = 224,616,609,933,008,512
  5. Step 5: Solve for x
    x = 224,616,609,933,008,512/679,957,893.70
  6. Step 6: Final answer
    x = 330,338,998.95

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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.