Home / 18,468,000.30-27,702,000.45-12,421,382.70

Finding the Fourth Proportional to 18,468,000.30, 27,702,000.45 and 12,421,382.70

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Solution

The fourth proportional to 18,468,000.30, 27,702,000.45 and 12,421,382.70 is: 18,632,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468,000.30 : 27,702,000.45 = 12,421,382.70 : x
  2. Step 2: Convert to fraction form
    18,468,000.30/27,702,000.45 = 12,421,382.70/x
  3. Step 3: Cross multiply
    18,468,000.30x = 27,702,000.45 × 12,421,382.70
  4. Step 4: Simplify right side
    18,468,000.30x = 344,097,149,145,022.19
  5. Step 5: Solve for x
    x = 344,097,149,145,022.19/18,468,000.30
  6. Step 6: Final answer
    x = 18,632,074.05

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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.