Home / 18,670,499.56-27,989,775.09-7,164,223.96

Finding the Fourth Proportional to 18,670,499.56, 27,989,775.09 and 7,164,223.96

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Solution

The fourth proportional to 18,670,499.56, 27,989,775.09 and 7,164,223.96 is: 10,740,206.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670,499.56 : 27,989,775.09 = 7,164,223.96 : x
  2. Step 2: Convert to fraction form
    18,670,499.56/27,989,775.09 = 7,164,223.96/x
  3. Step 3: Cross multiply
    18,670,499.56x = 27,989,775.09 × 7,164,223.96
  4. Step 4: Simplify right side
    18,670,499.56x = 200,525,017,334,789.16
  5. Step 5: Solve for x
    x = 200,525,017,334,789.16/18,670,499.56
  6. Step 6: Final answer
    x = 10,740,206.32

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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.