Home / 20,172,319.40-30,223,049.70-16,558,520.60

Finding the Fourth Proportional to 20,172,319.40, 30,223,049.70 and 16,558,520.60

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Solution

The fourth proportional to 20,172,319.40, 30,223,049.70 and 16,558,520.60 is: 24,808,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172,319.40 : 30,223,049.70 = 16,558,520.60 : x
  2. Step 2: Convert to fraction form
    20,172,319.40/30,223,049.70 = 16,558,520.60/x
  3. Step 3: Cross multiply
    20,172,319.40x = 30,223,049.70 × 16,558,520.60
  4. Step 4: Simplify right side
    20,172,319.40x = 500,448,991,052,273.81
  5. Step 5: Solve for x
    x = 500,448,991,052,273.81/20,172,319.40
  6. Step 6: Final answer
    x = 24,808,698.55

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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.