Home / 21,705,451.72-32,515,612.13-12,588,400.94

Finding the Fourth Proportional to 21,705,451.72, 32,515,612.13 and 12,588,400.94

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Solution

The fourth proportional to 21,705,451.72, 32,515,612.13 and 12,588,400.94 is: 18,857,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705,451.72 : 32,515,612.13 = 12,588,400.94 : x
  2. Step 2: Convert to fraction form
    21,705,451.72/32,515,612.13 = 12,588,400.94/x
  3. Step 3: Cross multiply
    21,705,451.72x = 32,515,612.13 × 12,588,400.94
  4. Step 4: Simplify right side
    21,705,451.72x = 409,319,562,170,860.38
  5. Step 5: Solve for x
    x = 409,319,562,170,860.38/21,705,451.72
  6. Step 6: Final answer
    x = 18,857,914.94

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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.