Home / 15,698,992.80-23,548,489.20-8,128,279.20

Finding the Fourth Proportional to 15,698,992.80, 23,548,489.20 and 8,128,279.20

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Solution

The fourth proportional to 15,698,992.80, 23,548,489.20 and 8,128,279.20 is: 12,192,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,698,992.80 : 23,548,489.20 = 8,128,279.20 : x
  2. Step 2: Convert to fraction form
    15,698,992.80/23,548,489.20 = 8,128,279.20/x
  3. Step 3: Cross multiply
    15,698,992.80x = 23,548,489.20 × 8,128,279.20
  4. Step 4: Simplify right side
    15,698,992.80x = 191,408,694,955,784.62
  5. Step 5: Solve for x
    x = 191,408,694,955,784.62/15,698,992.80
  6. Step 6: Final answer
    x = 12,192,418.80

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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.