Home / 8,743,418.80-13,115,128.20-8,687,431.60

Finding the Fourth Proportional to 8,743,418.80, 13,115,128.20 and 8,687,431.60

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Solution

The fourth proportional to 8,743,418.80, 13,115,128.20 and 8,687,431.60 is: 13,031,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743,418.80 : 13,115,128.20 = 8,687,431.60 : x
  2. Step 2: Convert to fraction form
    8,743,418.80/13,115,128.20 = 8,687,431.60/x
  3. Step 3: Cross multiply
    8,743,418.80x = 13,115,128.20 × 8,687,431.60
  4. Step 4: Simplify right side
    8,743,418.80x = 113,936,779,162,731.11
  5. Step 5: Solve for x
    x = 113,936,779,162,731.11/8,743,418.80
  6. Step 6: Final answer
    x = 13,031,147.40

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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.