Home / 18,172,455.20-27,258,682.80-13,070,621.60

Finding the Fourth Proportional to 18,172,455.20, 27,258,682.80 and 13,070,621.60

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Solution

The fourth proportional to 18,172,455.20, 27,258,682.80 and 13,070,621.60 is: 19,605,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,455.20 : 27,258,682.80 = 13,070,621.60 : x
  2. Step 2: Convert to fraction form
    18,172,455.20/27,258,682.80 = 13,070,621.60/x
  3. Step 3: Cross multiply
    18,172,455.20x = 27,258,682.80 × 13,070,621.60
  4. Step 4: Simplify right side
    18,172,455.20x = 356,287,928,193,228.50
  5. Step 5: Solve for x
    x = 356,287,928,193,228.50/18,172,455.20
  6. Step 6: Final answer
    x = 19,605,932.40

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1.5x scale

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.