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Finding the Fourth Proportional to 16,619,636.40, 24,915,457.80 and 8,641,460.40

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Solution

The fourth proportional to 16,619,636.40, 24,915,457.80 and 8,641,460.40 is: 12,954,912.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,619,636.40 : 24,915,457.80 = 8,641,460.40 : x
  2. Step 2: Convert to fraction form
    16,619,636.40/24,915,457.80 = 8,641,460.40/x
  3. Step 3: Cross multiply
    16,619,636.40x = 24,915,457.80 × 8,641,460.40
  4. Step 4: Simplify right side
    16,619,636.40x = 215,305,941,926,571.12
  5. Step 5: Solve for x
    x = 215,305,941,926,571.12/16,619,636.40
  6. Step 6: Final answer
    x = 12,954,912.90

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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.