Home / 18,468,000.40-27,702,000.60-12,421,382.80

Finding the Fourth Proportional to 18,468,000.40, 27,702,000.60 and 12,421,382.80

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Solution

The fourth proportional to 18,468,000.40, 27,702,000.60 and 12,421,382.80 is: 18,632,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468,000.40 : 27,702,000.60 = 12,421,382.80 : x
  2. Step 2: Convert to fraction form
    18,468,000.40/27,702,000.60 = 12,421,382.80/x
  3. Step 3: Cross multiply
    18,468,000.40x = 27,702,000.60 × 12,421,382.80
  4. Step 4: Simplify right side
    18,468,000.40x = 344,097,153,778,429.75
  5. Step 5: Solve for x
    x = 344,097,153,778,429.75/18,468,000.40
  6. Step 6: Final answer
    x = 18,632,074.20

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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.