Home / 68,301,204.90-102,436,969.59-21,618,320.82

Finding the Fourth Proportional to 68,301,204.90, 102,436,969.59 and 21,618,320.82

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Solution

The fourth proportional to 68,301,204.90, 102,436,969.59 and 21,618,320.82 is: 32,422,784.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,301,204.90 : 102,436,969.59 = 21,618,320.82 : x
  2. Step 2: Convert to fraction form
    68,301,204.90/102,436,969.59 = 21,618,320.82/x
  3. Step 3: Cross multiply
    68,301,204.90x = 102,436,969.59 × 21,618,320.82
  4. Step 4: Simplify right side
    68,301,204.90x = 2,214,515,272,425,204
  5. Step 5: Solve for x
    x = 2,214,515,272,425,204/68,301,204.90
  6. Step 6: Final answer
    x = 32,422,784.86

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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.