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Finding the Fourth Proportional to 13,969,495,853.15, 20,954,243,779.73 and 13,969,495,853.15

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Solution

The fourth proportional to 13,969,495,853.15, 20,954,243,779.73 and 13,969,495,853.15 is: 20,954,243,779.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969,495,853.15 : 20,954,243,779.73 = 13,969,495,853.15 : x
  2. Step 2: Convert to fraction form
    13,969,495,853.15/20,954,243,779.73 = 13,969,495,853.15/x
  3. Step 3: Cross multiply
    13,969,495,853.15x = 20,954,243,779.73 × 13,969,495,853.15
  4. Step 4: Simplify right side
    13,969,495,853.15x = 292,720,221,586,762,530,816
  5. Step 5: Solve for x
    x = 292,720,221,586,762,530,816/13,969,495,853.15
  6. Step 6: Final answer
    x = 20,954,243,779.73

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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.