Home / 13,412,617.72-18,509,820.78-9,499,384.60

Finding the Fourth Proportional to 13,412,617.72, 18,509,820.78 and 9,499,384.60

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Solution

The fourth proportional to 13,412,617.72, 18,509,820.78 and 9,499,384.60 is: 13,109,439.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412,617.72 : 18,509,820.78 = 9,499,384.60 : x
  2. Step 2: Convert to fraction form
    13,412,617.72/18,509,820.78 = 9,499,384.60/x
  3. Step 3: Cross multiply
    13,412,617.72x = 18,509,820.78 × 9,499,384.60
  4. Step 4: Simplify right side
    13,412,617.72x = 175,831,906,466,292
  5. Step 5: Solve for x
    x = 175,831,906,466,292/13,412,617.72
  6. Step 6: Final answer
    x = 13,109,439.94

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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.