Home / 12,489,181.80-18,735,522.30-5,300,658.60

Finding the Fourth Proportional to 12,489,181.80, 18,735,522.30 and 5,300,658.60

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Solution

The fourth proportional to 12,489,181.80, 18,735,522.30 and 5,300,658.60 is: 7,951,730.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489,181.80 : 18,735,522.30 = 5,300,658.60 : x
  2. Step 2: Convert to fraction form
    12,489,181.80/18,735,522.30 = 5,300,658.60/x
  3. Step 3: Cross multiply
    12,489,181.80x = 18,735,522.30 × 5,300,658.60
  4. Step 4: Simplify right side
    12,489,181.80x = 99,310,607,404,986.78
  5. Step 5: Solve for x
    x = 99,310,607,404,986.78/12,489,181.80
  6. Step 6: Final answer
    x = 7,951,730.47

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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.