Home / 12,777,321.60-19,134,489.60-8,494,300.80

Finding the Fourth Proportional to 12,777,321.60, 19,134,489.60 and 8,494,300.80

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Solution

The fourth proportional to 12,777,321.60, 19,134,489.60 and 8,494,300.80 is: 12,720,514.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777,321.60 : 19,134,489.60 = 8,494,300.80 : x
  2. Step 2: Convert to fraction form
    12,777,321.60/19,134,489.60 = 8,494,300.80/x
  3. Step 3: Cross multiply
    12,777,321.60x = 19,134,489.60 × 8,494,300.80
  4. Step 4: Simplify right side
    12,777,321.60x = 162,534,110,316,871.72
  5. Step 5: Solve for x
    x = 162,534,110,316,871.72/12,777,321.60
  6. Step 6: Final answer
    x = 12,720,514.94

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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.