Home / 19,309,678.20-28,964,517.30-12,591,214.20

Finding the Fourth Proportional to 19,309,678.20, 28,964,517.30 and 12,591,214.20

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Solution

The fourth proportional to 19,309,678.20, 28,964,517.30 and 12,591,214.20 is: 18,886,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309,678.20 : 28,964,517.30 = 12,591,214.20 : x
  2. Step 2: Convert to fraction form
    19,309,678.20/28,964,517.30 = 12,591,214.20/x
  3. Step 3: Cross multiply
    19,309,678.20x = 28,964,517.30 × 12,591,214.20
  4. Step 4: Simplify right side
    19,309,678.20x = 364,698,441,523,905.62
  5. Step 5: Solve for x
    x = 364,698,441,523,905.62/19,309,678.20
  6. Step 6: Final answer
    x = 18,886,821.30

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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.