Home / 12,482,920.20-18,714,012.30-5,299,969.80

Finding the Fourth Proportional to 12,482,920.20, 18,714,012.30 and 5,299,969.80

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Solution

The fourth proportional to 12,482,920.20, 18,714,012.30 and 5,299,969.80 is: 7,945,552.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,920.20 : 18,714,012.30 = 5,299,969.80 : x
  2. Step 2: Convert to fraction form
    12,482,920.20/18,714,012.30 = 5,299,969.80/x
  3. Step 3: Cross multiply
    12,482,920.20x = 18,714,012.30 × 5,299,969.80
  4. Step 4: Simplify right side
    12,482,920.20x = 99,183,700,026,828.55
  5. Step 5: Solve for x
    x = 99,183,700,026,828.55/12,482,920.20
  6. Step 6: Final answer
    x = 7,945,552.68

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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.