Home / 18,145,216.80-27,217,825.20-10,492,466.40

Finding the Fourth Proportional to 18,145,216.80, 27,217,825.20 and 10,492,466.40

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Solution

The fourth proportional to 18,145,216.80, 27,217,825.20 and 10,492,466.40 is: 15,738,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,216.80 : 27,217,825.20 = 10,492,466.40 : x
  2. Step 2: Convert to fraction form
    18,145,216.80/27,217,825.20 = 10,492,466.40/x
  3. Step 3: Cross multiply
    18,145,216.80x = 27,217,825.20 × 10,492,466.40
  4. Step 4: Simplify right side
    18,145,216.80x = 285,582,116,392,073.31
  5. Step 5: Solve for x
    x = 285,582,116,392,073.31/18,145,216.80
  6. Step 6: Final answer
    x = 15,738,699.60

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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.