Home / 68,777,110.80-103,165,666.20-66,131,715.60

Finding the Fourth Proportional to 68,777,110.80, 103,165,666.20 and 66,131,715.60

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Solution

The fourth proportional to 68,777,110.80, 103,165,666.20 and 66,131,715.60 is: 99,197,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,777,110.80 : 103,165,666.20 = 66,131,715.60 : x
  2. Step 2: Convert to fraction form
    68,777,110.80/103,165,666.20 = 66,131,715.60/x
  3. Step 3: Cross multiply
    68,777,110.80x = 103,165,666.20 × 66,131,715.60
  4. Step 4: Simplify right side
    68,777,110.80x = 6,822,522,496,822,933
  5. Step 5: Solve for x
    x = 6,822,522,496,822,933/68,777,110.80
  6. Step 6: Final answer
    x = 99,197,573.40

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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.