Home / 3,127,140.81-4,318,147.67-1,967,520.51

Finding the Fourth Proportional to 3,127,140.81, 4,318,147.67 and 1,967,520.51

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Solution

The fourth proportional to 3,127,140.81, 4,318,147.67 and 1,967,520.51 is: 2,716,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127,140.81 : 4,318,147.67 = 1,967,520.51 : x
  2. Step 2: Convert to fraction form
    3,127,140.81/4,318,147.67 = 1,967,520.51/x
  3. Step 3: Cross multiply
    3,127,140.81x = 4,318,147.67 × 1,967,520.51
  4. Step 4: Simplify right side
    3,127,140.81x = 8,496,044,096,096.11
  5. Step 5: Solve for x
    x = 8,496,044,096,096.11/3,127,140.81
  6. Step 6: Final answer
    x = 2,716,872.89

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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.