Home / 20,169,115.20-30,285,165.60-11,666,059.20

Finding the Fourth Proportional to 20,169,115.20, 30,285,165.60 and 11,666,059.20

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Solution

The fourth proportional to 20,169,115.20, 30,285,165.60 and 11,666,059.20 is: 17,517,304.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,115.20 : 30,285,165.60 = 11,666,059.20 : x
  2. Step 2: Convert to fraction form
    20,169,115.20/30,285,165.60 = 11,666,059.20/x
  3. Step 3: Cross multiply
    20,169,115.20x = 30,285,165.60 × 11,666,059.20
  4. Step 4: Simplify right side
    20,169,115.20x = 353,308,534,771,403.50
  5. Step 5: Solve for x
    x = 353,308,534,771,403.50/20,169,115.20
  6. Step 6: Final answer
    x = 17,517,304.61

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1.5x scale

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.