Home / 70,489,138.14-105,733,561.80-39,769,772.42

Finding the Fourth Proportional to 70,489,138.14, 105,733,561.80 and 39,769,772.42

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Solution

The fourth proportional to 70,489,138.14, 105,733,561.80 and 39,769,772.42 is: 59,654,576.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,489,138.14 : 105,733,561.80 = 39,769,772.42 : x
  2. Step 2: Convert to fraction form
    70,489,138.14/105,733,561.80 = 39,769,772.42/x
  3. Step 3: Cross multiply
    70,489,138.14x = 105,733,561.80 × 39,769,772.42
  4. Step 4: Simplify right side
    70,489,138.14x = 4,204,999,689,413,337.50
  5. Step 5: Solve for x
    x = 4,204,999,689,413,337.50/70,489,138.14
  6. Step 6: Final answer
    x = 59,654,576.58

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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.