Home / 13,361,409.20-20,042,113.80-11,448,221.60

Finding the Fourth Proportional to 13,361,409.20, 20,042,113.80 and 11,448,221.60

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Solution

The fourth proportional to 13,361,409.20, 20,042,113.80 and 11,448,221.60 is: 17,172,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,409.20 : 20,042,113.80 = 11,448,221.60 : x
  2. Step 2: Convert to fraction form
    13,361,409.20/20,042,113.80 = 11,448,221.60/x
  3. Step 3: Cross multiply
    13,361,409.20x = 20,042,113.80 × 11,448,221.60
  4. Step 4: Simplify right side
    13,361,409.20x = 229,446,560,114,818.09
  5. Step 5: Solve for x
    x = 229,446,560,114,818.09/13,361,409.20
  6. Step 6: Final answer
    x = 17,172,332.40

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1.5x scale

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.