Home / 7,286,344.58-10,055,204.14-3,978,661.78

Finding the Fourth Proportional to 7,286,344.58, 10,055,204.14 and 3,978,661.78

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Solution

The fourth proportional to 7,286,344.58, 10,055,204.14 and 3,978,661.78 is: 5,490,579.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286,344.58 : 10,055,204.14 = 3,978,661.78 : x
  2. Step 2: Convert to fraction form
    7,286,344.58/10,055,204.14 = 3,978,661.78/x
  3. Step 3: Cross multiply
    7,286,344.58x = 10,055,204.14 × 3,978,661.78
  4. Step 4: Simplify right side
    7,286,344.58x = 40,006,256,401,915.77
  5. Step 5: Solve for x
    x = 40,006,256,401,915.77/7,286,344.58
  6. Step 6: Final answer
    x = 5,490,579.80

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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.