Home / 20,611,975.80-30,917,963.70-20,139,583.80

Finding the Fourth Proportional to 20,611,975.80, 30,917,963.70 and 20,139,583.80

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Solution

The fourth proportional to 20,611,975.80, 30,917,963.70 and 20,139,583.80 is: 30,209,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611,975.80 : 30,917,963.70 = 20,139,583.80 : x
  2. Step 2: Convert to fraction form
    20,611,975.80/30,917,963.70 = 20,139,583.80/x
  3. Step 3: Cross multiply
    20,611,975.80x = 30,917,963.70 × 20,139,583.80
  4. Step 4: Simplify right side
    20,611,975.80x = 622,674,920,861,508.12
  5. Step 5: Solve for x
    x = 622,674,920,861,508.12/20,611,975.80
  6. Step 6: Final answer
    x = 30,209,375.70

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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.