Home / 13,387,645.20-20,081,467.80-12,463,856.40

Finding the Fourth Proportional to 13,387,645.20, 20,081,467.80 and 12,463,856.40

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Solution

The fourth proportional to 13,387,645.20, 20,081,467.80 and 12,463,856.40 is: 18,695,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387,645.20 : 20,081,467.80 = 12,463,856.40 : x
  2. Step 2: Convert to fraction form
    13,387,645.20/20,081,467.80 = 12,463,856.40/x
  3. Step 3: Cross multiply
    13,387,645.20x = 20,081,467.80 × 12,463,856.40
  4. Step 4: Simplify right side
    13,387,645.20x = 250,292,530,960,423.94
  5. Step 5: Solve for x
    x = 250,292,530,960,423.94/13,387,645.20
  6. Step 6: Final answer
    x = 18,695,784.60

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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.