Home / 20,146,858.80-30,220,288.20-14,520,145.20

Finding the Fourth Proportional to 20,146,858.80, 30,220,288.20 and 14,520,145.20

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Solution

The fourth proportional to 20,146,858.80, 30,220,288.20 and 14,520,145.20 is: 21,780,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,858.80 : 30,220,288.20 = 14,520,145.20 : x
  2. Step 2: Convert to fraction form
    20,146,858.80/30,220,288.20 = 14,520,145.20/x
  3. Step 3: Cross multiply
    20,146,858.80x = 30,220,288.20 × 14,520,145.20
  4. Step 4: Simplify right side
    20,146,858.80x = 438,802,972,649,846.62
  5. Step 5: Solve for x
    x = 438,802,972,649,846.62/20,146,858.80
  6. Step 6: Final answer
    x = 21,780,217.80

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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.