Home / 7,863,397.09-11,778,059.05-3,811,408.57

Finding the Fourth Proportional to 7,863,397.09, 11,778,059.05 and 3,811,408.57

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Solution

The fourth proportional to 7,863,397.09, 11,778,059.05 and 3,811,408.57 is: 5,708,855.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863,397.09 : 11,778,059.05 = 3,811,408.57 : x
  2. Step 2: Convert to fraction form
    7,863,397.09/11,778,059.05 = 3,811,408.57/x
  3. Step 3: Cross multiply
    7,863,397.09x = 11,778,059.05 × 3,811,408.57
  4. Step 4: Simplify right side
    7,863,397.09x = 44,890,995,201,136.06
  5. Step 5: Solve for x
    x = 44,890,995,201,136.06/7,863,397.09
  6. Step 6: Final answer
    x = 5,708,855.18

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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.