Home / 13,643,078.74-18,825,661.89-8,137,099.80

Finding the Fourth Proportional to 13,643,078.74, 18,825,661.89 and 8,137,099.80

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Solution

The fourth proportional to 13,643,078.74, 18,825,661.89 and 8,137,099.80 is: 11,228,132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643,078.74 : 18,825,661.89 = 8,137,099.80 : x
  2. Step 2: Convert to fraction form
    13,643,078.74/18,825,661.89 = 8,137,099.80/x
  3. Step 3: Cross multiply
    13,643,078.74x = 18,825,661.89 × 8,137,099.80
  4. Step 4: Simplify right side
    13,643,078.74x = 153,186,289,599,986.62
  5. Step 5: Solve for x
    x = 153,186,289,599,986.62/13,643,078.74
  6. Step 6: Final answer
    x = 11,228,132.05

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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.