Home / 13,334,572.80-20,001,859.20-13,121,996.40

Finding the Fourth Proportional to 13,334,572.80, 20,001,859.20 and 13,121,996.40

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Solution

The fourth proportional to 13,334,572.80, 20,001,859.20 and 13,121,996.40 is: 19,682,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334,572.80 : 20,001,859.20 = 13,121,996.40 : x
  2. Step 2: Convert to fraction form
    13,334,572.80/20,001,859.20 = 13,121,996.40/x
  3. Step 3: Cross multiply
    13,334,572.80x = 20,001,859.20 × 13,121,996.40
  4. Step 4: Simplify right side
    13,334,572.80x = 262,464,324,415,706.88
  5. Step 5: Solve for x
    x = 262,464,324,415,706.88/13,334,572.80
  6. Step 6: Final answer
    x = 19,682,994.60

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Similar ratio
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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.