Home / 15,112,619.18-20,855,183.02-8,497,213.45

Finding the Fourth Proportional to 15,112,619.18, 20,855,183.02 and 8,497,213.45

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Solution

The fourth proportional to 15,112,619.18, 20,855,183.02 and 8,497,213.45 is: 11,726,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112,619.18 : 20,855,183.02 = 8,497,213.45 : x
  2. Step 2: Convert to fraction form
    15,112,619.18/20,855,183.02 = 8,497,213.45/x
  3. Step 3: Cross multiply
    15,112,619.18x = 20,855,183.02 × 8,497,213.45
  4. Step 4: Simplify right side
    15,112,619.18x = 177,210,941,659,755.59
  5. Step 5: Solve for x
    x = 177,210,941,659,755.59/15,112,619.18
  6. Step 6: Final answer
    x = 11,726,024.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.