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Finding the Fourth Proportional to 20,414,378,533.60, 30,621,567,800.40 and 20,414,378,533.60

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Solution

The fourth proportional to 20,414,378,533.60, 30,621,567,800.40 and 20,414,378,533.60 is: 30,621,567,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414,378,533.60 : 30,621,567,800.40 = 20,414,378,533.60 : x
  2. Step 2: Convert to fraction form
    20,414,378,533.60/30,621,567,800.40 = 20,414,378,533.60/x
  3. Step 3: Cross multiply
    20,414,378,533.60x = 30,621,567,800.40 × 20,414,378,533.60
  4. Step 4: Simplify right side
    20,414,378,533.60x = 625,120,276,369,662,672,896
  5. Step 5: Solve for x
    x = 625,120,276,369,662,672,896/20,414,378,533.60
  6. Step 6: Final answer
    x = 30,621,567,800.40

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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.