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Finding the Fourth Proportional to 10,647,351.60, 15,971,027.40 and 7,624,042.80

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Solution

The fourth proportional to 10,647,351.60, 15,971,027.40 and 7,624,042.80 is: 11,436,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647,351.60 : 15,971,027.40 = 7,624,042.80 : x
  2. Step 2: Convert to fraction form
    10,647,351.60/15,971,027.40 = 7,624,042.80/x
  3. Step 3: Cross multiply
    10,647,351.60x = 15,971,027.40 × 7,624,042.80
  4. Step 4: Simplify right side
    10,647,351.60x = 121,763,796,457,572.72
  5. Step 5: Solve for x
    x = 121,763,796,457,572.72/10,647,351.60
  6. Step 6: Final answer
    x = 11,436,064.20

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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.