Home / 15,685,276.32-21,647,711.09-8,809,758.18

Finding the Fourth Proportional to 15,685,276.32, 21,647,711.09 and 8,809,758.18

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Solution

The fourth proportional to 15,685,276.32, 21,647,711.09 and 8,809,758.18 is: 12,158,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,685,276.32 : 21,647,711.09 = 8,809,758.18 : x
  2. Step 2: Convert to fraction form
    15,685,276.32/21,647,711.09 = 8,809,758.18/x
  3. Step 3: Cross multiply
    15,685,276.32x = 21,647,711.09 × 8,809,758.18
  4. Step 4: Simplify right side
    15,685,276.32x = 190,711,099,875,428.62
  5. Step 5: Solve for x
    x = 190,711,099,875,428.62/15,685,276.32
  6. Step 6: Final answer
    x = 12,158,606.33

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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.