Home / 68,531,541.20-102,598,246.20-66,540,885.20

Finding the Fourth Proportional to 68,531,541.20, 102,598,246.20 and 66,540,885.20

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Solution

The fourth proportional to 68,531,541.20, 102,598,246.20 and 66,540,885.20 is: 99,618,044.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,531,541.20 : 102,598,246.20 = 66,540,885.20 : x
  2. Step 2: Convert to fraction form
    68,531,541.20/102,598,246.20 = 66,540,885.20/x
  3. Step 3: Cross multiply
    68,531,541.20x = 102,598,246.20 × 66,540,885.20
  4. Step 4: Simplify right side
    68,531,541.20x = 6,826,978,122,115,537
  5. Step 5: Solve for x
    x = 6,826,978,122,115,537/68,531,541.20
  6. Step 6: Final answer
    x = 99,618,044.52

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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.