Home / 21,456,096.80-32,184,145.20-13,378,193.60

Finding the Fourth Proportional to 21,456,096.80, 32,184,145.20 and 13,378,193.60

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Solution

The fourth proportional to 21,456,096.80, 32,184,145.20 and 13,378,193.60 is: 20,067,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,096.80 : 32,184,145.20 = 13,378,193.60 : x
  2. Step 2: Convert to fraction form
    21,456,096.80/32,184,145.20 = 13,378,193.60/x
  3. Step 3: Cross multiply
    21,456,096.80x = 32,184,145.20 × 13,378,193.60
  4. Step 4: Simplify right side
    21,456,096.80x = 430,565,725,336,110.69
  5. Step 5: Solve for x
    x = 430,565,725,336,110.69/21,456,096.80
  6. Step 6: Final answer
    x = 20,067,290.40

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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.