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Finding the Fourth Proportional to 14,378,899,655.20, 21,536,100,855.60 and 14,378,899,655.20

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Solution

The fourth proportional to 14,378,899,655.20, 21,536,100,855.60 and 14,378,899,655.20 is: 21,536,100,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378,899,655.20 : 21,536,100,855.60 = 14,378,899,655.20 : x
  2. Step 2: Convert to fraction form
    14,378,899,655.20/21,536,100,855.60 = 14,378,899,655.20/x
  3. Step 3: Cross multiply
    14,378,899,655.20x = 21,536,100,855.60 × 14,378,899,655.20
  4. Step 4: Simplify right side
    14,378,899,655.20x = 309,665,433,166,939,291,648
  5. Step 5: Solve for x
    x = 309,665,433,166,939,291,648/14,378,899,655.20
  6. Step 6: Final answer
    x = 21,536,100,855.60

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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.