Home / 10,631,913.60-15,963,616.80-8,238,460.80

Finding the Fourth Proportional to 10,631,913.60, 15,963,616.80 and 8,238,460.80

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Solution

The fourth proportional to 10,631,913.60, 15,963,616.80 and 8,238,460.80 is: 12,369,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631,913.60 : 15,963,616.80 = 8,238,460.80 : x
  2. Step 2: Convert to fraction form
    10,631,913.60/15,963,616.80 = 8,238,460.80/x
  3. Step 3: Cross multiply
    10,631,913.60x = 15,963,616.80 × 8,238,460.80
  4. Step 4: Simplify right side
    10,631,913.60x = 131,515,631,233,021.44
  5. Step 5: Solve for x
    x = 131,515,631,233,021.44/10,631,913.60
  6. Step 6: Final answer
    x = 12,369,892.78

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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.