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Finding the Fourth Proportional to 9,274,662,990.40, 13,911,994,485.60 and 9,274,662,990.40

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Solution

The fourth proportional to 9,274,662,990.40, 13,911,994,485.60 and 9,274,662,990.40 is: 13,911,994,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,274,662,990.40 : 13,911,994,485.60 = 9,274,662,990.40 : x
  2. Step 2: Convert to fraction form
    9,274,662,990.40/13,911,994,485.60 = 9,274,662,990.40/x
  3. Step 3: Cross multiply
    9,274,662,990.40x = 13,911,994,485.60 × 9,274,662,990.40
  4. Step 4: Simplify right side
    9,274,662,990.40x = 129,029,060,378,243,203,072
  5. Step 5: Solve for x
    x = 129,029,060,378,243,203,072/9,274,662,990.40
  6. Step 6: Final answer
    x = 13,911,994,485.60

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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.