Home / 2,129,905.81-3,196,021.16-1,233,099.12

Finding the Fourth Proportional to 2,129,905.81, 3,196,021.16 and 1,233,099.12

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Solution

The fourth proportional to 2,129,905.81, 3,196,021.16 and 1,233,099.12 is: 1,850,321.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,905.81 : 3,196,021.16 = 1,233,099.12 : x
  2. Step 2: Convert to fraction form
    2,129,905.81/3,196,021.16 = 1,233,099.12/x
  3. Step 3: Cross multiply
    2,129,905.81x = 3,196,021.16 × 1,233,099.12
  4. Step 4: Simplify right side
    2,129,905.81x = 3,941,010,879,897.38
  5. Step 5: Solve for x
    x = 3,941,010,879,897.38/2,129,905.81
  6. Step 6: Final answer
    x = 1,850,321.67

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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.