Home / 20,157,552.60-30,240,216.90-8,642,851.80

Finding the Fourth Proportional to 20,157,552.60, 30,240,216.90 and 8,642,851.80

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Solution

The fourth proportional to 20,157,552.60, 30,240,216.90 and 8,642,851.80 is: 12,965,944.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,552.60 : 30,240,216.90 = 8,642,851.80 : x
  2. Step 2: Convert to fraction form
    20,157,552.60/30,240,216.90 = 8,642,851.80/x
  3. Step 3: Cross multiply
    20,157,552.60x = 30,240,216.90 × 8,642,851.80
  4. Step 4: Simplify right side
    20,157,552.60x = 261,361,713,066,555.44
  5. Step 5: Solve for x
    x = 261,361,713,066,555.44/20,157,552.60
  6. Step 6: Final answer
    x = 12,965,944.74

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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.