Home / 18,172,390.20-27,258,585.30-13,070,556.60

Finding the Fourth Proportional to 18,172,390.20, 27,258,585.30 and 13,070,556.60

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Solution

The fourth proportional to 18,172,390.20, 27,258,585.30 and 13,070,556.60 is: 19,605,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,390.20 : 27,258,585.30 = 13,070,556.60 : x
  2. Step 2: Convert to fraction form
    18,172,390.20/27,258,585.30 = 13,070,556.60/x
  3. Step 3: Cross multiply
    18,172,390.20x = 27,258,585.30 × 13,070,556.60
  4. Step 4: Simplify right side
    18,172,390.20x = 356,284,881,999,578
  5. Step 5: Solve for x
    x = 356,284,881,999,578/18,172,390.20
  6. Step 6: Final answer
    x = 19,605,834.90

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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.