Home / 82,036,147.20-123,044,889.60-21,457,996.80

Finding the Fourth Proportional to 82,036,147.20, 123,044,889.60 and 21,457,996.80

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Solution

The fourth proportional to 82,036,147.20, 123,044,889.60 and 21,457,996.80 is: 32,184,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,036,147.20 : 123,044,889.60 = 21,457,996.80 : x
  2. Step 2: Convert to fraction form
    82,036,147.20/123,044,889.60 = 21,457,996.80/x
  3. Step 3: Cross multiply
    82,036,147.20x = 123,044,889.60 × 21,457,996.80
  4. Step 4: Simplify right side
    82,036,147.20x = 2,640,296,847,293,153
  5. Step 5: Solve for x
    x = 2,640,296,847,293,153/82,036,147.20
  6. Step 6: Final answer
    x = 32,184,554.46

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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.