Home / 70,489,137.65-105,733,561.06-39,769,771.92

Finding the Fourth Proportional to 70,489,137.65, 105,733,561.06 and 39,769,771.92

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Solution

The fourth proportional to 70,489,137.65, 105,733,561.06 and 39,769,771.92 is: 59,654,575.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,489,137.65 : 105,733,561.06 = 39,769,771.92 : x
  2. Step 2: Convert to fraction form
    70,489,137.65/105,733,561.06 = 39,769,771.92/x
  3. Step 3: Cross multiply
    70,489,137.65x = 105,733,561.06 × 39,769,771.92
  4. Step 4: Simplify right side
    70,489,137.65x = 4,204,999,606,918,077
  5. Step 5: Solve for x
    x = 4,204,999,606,918,077/70,489,137.65
  6. Step 6: Final answer
    x = 59,654,575.83

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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.