Home / 85,213,910.70-127,820,866.05-52,902,297.90

Finding the Fourth Proportional to 85,213,910.70, 127,820,866.05 and 52,902,297.90

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Solution

The fourth proportional to 85,213,910.70, 127,820,866.05 and 52,902,297.90 is: 79,353,446.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,213,910.70 : 127,820,866.05 = 52,902,297.90 : x
  2. Step 2: Convert to fraction form
    85,213,910.70/127,820,866.05 = 52,902,297.90/x
  3. Step 3: Cross multiply
    85,213,910.70x = 127,820,866.05 × 52,902,297.90
  4. Step 4: Simplify right side
    85,213,910.70x = 6,762,017,533,613,096
  5. Step 5: Solve for x
    x = 6,762,017,533,613,096/85,213,910.70
  6. Step 6: Final answer
    x = 79,353,446.85

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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.