Home / 12,089,919.20-18,134,878.80-3,114,471.20

Finding the Fourth Proportional to 12,089,919.20, 18,134,878.80 and 3,114,471.20

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Solution

The fourth proportional to 12,089,919.20, 18,134,878.80 and 3,114,471.20 is: 4,671,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089,919.20 : 18,134,878.80 = 3,114,471.20 : x
  2. Step 2: Convert to fraction form
    12,089,919.20/18,134,878.80 = 3,114,471.20/x
  3. Step 3: Cross multiply
    12,089,919.20x = 18,134,878.80 × 3,114,471.20
  4. Step 4: Simplify right side
    12,089,919.20x = 56,480,557,738,090.56
  5. Step 5: Solve for x
    x = 56,480,557,738,090.56/12,089,919.20
  6. Step 6: Final answer
    x = 4,671,706.80

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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.