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Finding the Fourth Proportional to 1,994,543,802.90, 2,991,815,704.35 and 1,994,543,802.90

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Solution

The fourth proportional to 1,994,543,802.90, 2,991,815,704.35 and 1,994,543,802.90 is: 2,991,815,704.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,543,802.90 : 2,991,815,704.35 = 1,994,543,802.90 : x
  2. Step 2: Convert to fraction form
    1,994,543,802.90/2,991,815,704.35 = 1,994,543,802.90/x
  3. Step 3: Cross multiply
    1,994,543,802.90x = 2,991,815,704.35 × 1,994,543,802.90
  4. Step 4: Simplify right side
    1,994,543,802.90x = 5,967,307,472,530,191,360
  5. Step 5: Solve for x
    x = 5,967,307,472,530,191,360/1,994,543,802.90
  6. Step 6: Final answer
    x = 2,991,815,704.35

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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.