Home / 71,511,512.34-107,268,252.65-20,393,536.62

Finding the Fourth Proportional to 71,511,512.34, 107,268,252.65 and 20,393,536.62

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Solution

The fourth proportional to 71,511,512.34, 107,268,252.65 and 20,393,536.62 is: 30,590,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511,512.34 : 107,268,252.65 = 20,393,536.62 : x
  2. Step 2: Convert to fraction form
    71,511,512.34/107,268,252.65 = 20,393,536.62/x
  3. Step 3: Cross multiply
    71,511,512.34x = 107,268,252.65 × 20,393,536.62
  4. Step 4: Simplify right side
    71,511,512.34x = 2,187,579,038,479,219.50
  5. Step 5: Solve for x
    x = 2,187,579,038,479,219.50/71,511,512.34
  6. Step 6: Final answer
    x = 30,590,585.58

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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.