Home / 20,103,281.40-30,121,679.70-11,568,732.60

Finding the Fourth Proportional to 20,103,281.40, 30,121,679.70 and 11,568,732.60

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Solution

The fourth proportional to 20,103,281.40, 30,121,679.70 and 11,568,732.60 is: 17,333,969.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103,281.40 : 30,121,679.70 = 11,568,732.60 : x
  2. Step 2: Convert to fraction form
    20,103,281.40/30,121,679.70 = 11,568,732.60/x
  3. Step 3: Cross multiply
    20,103,281.40x = 30,121,679.70 × 11,568,732.60
  4. Step 4: Simplify right side
    20,103,281.40x = 348,469,657,912,148.19
  5. Step 5: Solve for x
    x = 348,469,657,912,148.19/20,103,281.40
  6. Step 6: Final answer
    x = 17,333,969.07

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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.