Home / 20,684,300.40-30,979,211.40-12,181,244.40

Finding the Fourth Proportional to 20,684,300.40, 30,979,211.40 and 12,181,244.40

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Solution

The fourth proportional to 20,684,300.40, 30,979,211.40 and 12,181,244.40 is: 18,244,046.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,300.40 : 30,979,211.40 = 12,181,244.40 : x
  2. Step 2: Convert to fraction form
    20,684,300.40/30,979,211.40 = 12,181,244.40/x
  3. Step 3: Cross multiply
    20,684,300.40x = 30,979,211.40 × 12,181,244.40
  4. Step 4: Simplify right side
    20,684,300.40x = 377,365,345,382,666.12
  5. Step 5: Solve for x
    x = 377,365,345,382,666.12/20,684,300.40
  6. Step 6: Final answer
    x = 18,244,046.84

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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.