Home / 4,128,021.45-6,192,032.18-1,431,450.45

Finding the Fourth Proportional to 4,128,021.45, 6,192,032.18 and 1,431,450.45

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Solution

The fourth proportional to 4,128,021.45, 6,192,032.18 and 1,431,450.45 is: 2,147,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128,021.45 : 6,192,032.18 = 1,431,450.45 : x
  2. Step 2: Convert to fraction form
    4,128,021.45/6,192,032.18 = 1,431,450.45/x
  3. Step 3: Cross multiply
    4,128,021.45x = 6,192,032.18 × 1,431,450.45
  4. Step 4: Simplify right side
    4,128,021.45x = 8,863,587,243,318.23
  5. Step 5: Solve for x
    x = 8,863,587,243,318.23/4,128,021.45
  6. Step 6: Final answer
    x = 2,147,175.68

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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.