Home / 13,825,343.60-20,738,015.40-8,142,642.80

Finding the Fourth Proportional to 13,825,343.60, 20,738,015.40 and 8,142,642.80

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Solution

The fourth proportional to 13,825,343.60, 20,738,015.40 and 8,142,642.80 is: 12,213,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825,343.60 : 20,738,015.40 = 8,142,642.80 : x
  2. Step 2: Convert to fraction form
    13,825,343.60/20,738,015.40 = 8,142,642.80/x
  3. Step 3: Cross multiply
    13,825,343.60x = 20,738,015.40 × 8,142,642.80
  4. Step 4: Simplify right side
    13,825,343.60x = 168,862,251,783,099.09
  5. Step 5: Solve for x
    x = 168,862,251,783,099.09/13,825,343.60
  6. Step 6: Final answer
    x = 12,213,964.20

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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.