Home / 18,468,049.20-27,702,073.80-11,193,212.40

Finding the Fourth Proportional to 18,468,049.20, 27,702,073.80 and 11,193,212.40

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Solution

The fourth proportional to 18,468,049.20, 27,702,073.80 and 11,193,212.40 is: 16,789,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468,049.20 : 27,702,073.80 = 11,193,212.40 : x
  2. Step 2: Convert to fraction form
    18,468,049.20/27,702,073.80 = 11,193,212.40/x
  3. Step 3: Cross multiply
    18,468,049.20x = 27,702,073.80 × 11,193,212.40
  4. Step 4: Simplify right side
    18,468,049.20x = 310,075,195,963,875.12
  5. Step 5: Solve for x
    x = 310,075,195,963,875.12/18,468,049.20
  6. Step 6: Final answer
    x = 16,789,818.60

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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.