Home / 71,615,516.78-107,346,793.73-40,843,837.31

Finding the Fourth Proportional to 71,615,516.78, 107,346,793.73 and 40,843,837.31

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Solution

The fourth proportional to 71,615,516.78, 107,346,793.73 and 40,843,837.31 is: 61,222,136.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,615,516.78 : 107,346,793.73 = 40,843,837.31 : x
  2. Step 2: Convert to fraction form
    71,615,516.78/107,346,793.73 = 40,843,837.31/x
  3. Step 3: Cross multiply
    71,615,516.78x = 107,346,793.73 × 40,843,837.31
  4. Step 4: Simplify right side
    71,615,516.78x = 4,384,454,978,117,294.50
  5. Step 5: Solve for x
    x = 4,384,454,978,117,294.50/71,615,516.78
  6. Step 6: Final answer
    x = 61,222,136.98

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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.