Home / 7,254,012.78-10,010,537.40-3,990,757.32

Finding the Fourth Proportional to 7,254,012.78, 10,010,537.40 and 3,990,757.32

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Solution

The fourth proportional to 7,254,012.78, 10,010,537.40 and 3,990,757.32 is: 5,507,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,254,012.78 : 10,010,537.40 = 3,990,757.32 : x
  2. Step 2: Convert to fraction form
    7,254,012.78/10,010,537.40 = 3,990,757.32/x
  3. Step 3: Cross multiply
    7,254,012.78x = 10,010,537.40 × 3,990,757.32
  4. Step 4: Simplify right side
    7,254,012.78x = 39,949,625,406,183.77
  5. Step 5: Solve for x
    x = 39,949,625,406,183.77/7,254,012.78
  6. Step 6: Final answer
    x = 5,507,244.97

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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.