Home / 21,318,519.38-31,977,782.01-5,144,470.65

Finding the Fourth Proportional to 21,318,519.38, 31,977,782.01 and 5,144,470.65

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Solution

The fourth proportional to 21,318,519.38, 31,977,782.01 and 5,144,470.65 is: 7,716,706.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318,519.38 : 31,977,782.01 = 5,144,470.65 : x
  2. Step 2: Convert to fraction form
    21,318,519.38/31,977,782.01 = 5,144,470.65/x
  3. Step 3: Cross multiply
    21,318,519.38x = 31,977,782.01 × 5,144,470.65
  4. Step 4: Simplify right side
    21,318,519.38x = 164,508,761,002,543.03
  5. Step 5: Solve for x
    x = 164,508,761,002,543.03/21,318,519.38
  6. Step 6: Final answer
    x = 7,716,706.69

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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.