Home / 12,620,805.20-18,939,593.40-4,642,629.20

Finding the Fourth Proportional to 12,620,805.20, 18,939,593.40 and 4,642,629.20

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Solution

The fourth proportional to 12,620,805.20, 18,939,593.40 and 4,642,629.20 is: 6,967,028.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620,805.20 : 18,939,593.40 = 4,642,629.20 : x
  2. Step 2: Convert to fraction form
    12,620,805.20/18,939,593.40 = 4,642,629.20/x
  3. Step 3: Cross multiply
    12,620,805.20x = 18,939,593.40 × 4,642,629.20
  4. Step 4: Simplify right side
    12,620,805.20x = 87,929,509,354,967.28
  5. Step 5: Solve for x
    x = 87,929,509,354,967.28/12,620,805.20
  6. Step 6: Final answer
    x = 6,967,028.49

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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.