Home / 6,172,075-8,515,495.20-3,998,284.48

Finding the Fourth Proportional to 6,172,075, 8,515,495.20 and 3,998,284.48

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Solution

The fourth proportional to 6,172,075, 8,515,495.20 and 3,998,284.48 is: 5,516,357.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172,075 : 8,515,495.20 = 3,998,284.48 : x
  2. Step 2: Convert to fraction form
    6,172,075/8,515,495.20 = 3,998,284.48/x
  3. Step 3: Cross multiply
    6,172,075x = 8,515,495.20 × 3,998,284.48
  4. Step 4: Simplify right side
    6,172,075x = 34,047,372,297,674.49
  5. Step 5: Solve for x
    x = 34,047,372,297,674.49/6,172,075
  6. Step 6: Final answer
    x = 5,516,357.51

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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.