Home / 7,115,904.92-9,819,935.78-3,852,719.20

Finding the Fourth Proportional to 7,115,904.92, 9,819,935.78 and 3,852,719.20

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Solution

The fourth proportional to 7,115,904.92, 9,819,935.78 and 3,852,719.20 is: 5,316,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115,904.92 : 9,819,935.78 = 3,852,719.20 : x
  2. Step 2: Convert to fraction form
    7,115,904.92/9,819,935.78 = 3,852,719.20/x
  3. Step 3: Cross multiply
    7,115,904.92x = 9,819,935.78 × 3,852,719.20
  4. Step 4: Simplify right side
    7,115,904.92x = 37,833,455,122,372.98
  5. Step 5: Solve for x
    x = 37,833,455,122,372.98/7,115,904.92
  6. Step 6: Final answer
    x = 5,316,745.45

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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.