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Finding the Fourth Proportional to 10,921,878,015.80, 16,382,817,023.85 and 10,921,878,015.80

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Solution

The fourth proportional to 10,921,878,015.80, 16,382,817,023.85 and 10,921,878,015.80 is: 16,382,817,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921,878,015.80 : 16,382,817,023.85 = 10,921,878,015.80 : x
  2. Step 2: Convert to fraction form
    10,921,878,015.80/16,382,817,023.85 = 10,921,878,015.80/x
  3. Step 3: Cross multiply
    10,921,878,015.80x = 16,382,817,023.85 × 10,921,878,015.80
  4. Step 4: Simplify right side
    10,921,878,015.80x = 178,931,129,089,661,304,832
  5. Step 5: Solve for x
    x = 178,931,129,089,661,304,832/10,921,878,015.80
  6. Step 6: Final answer
    x = 16,382,817,023.85

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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.