Home / 68,939,984.72-103,383,072.74-30,090,319.04

Finding the Fourth Proportional to 68,939,984.72, 103,383,072.74 and 30,090,319.04

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Solution

The fourth proportional to 68,939,984.72, 103,383,072.74 and 30,090,319.04 is: 45,123,735.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,939,984.72 : 103,383,072.74 = 30,090,319.04 : x
  2. Step 2: Convert to fraction form
    68,939,984.72/103,383,072.74 = 30,090,319.04/x
  3. Step 3: Cross multiply
    68,939,984.72x = 103,383,072.74 × 30,090,319.04
  4. Step 4: Simplify right side
    68,939,984.72x = 3,110,829,642,082,126.50
  5. Step 5: Solve for x
    x = 3,110,829,642,082,126.50/68,939,984.72
  6. Step 6: Final answer
    x = 45,123,735.59

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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.