Home / 19,172,619,019.80-28,740,788,676.90-11,318,062,757.40

Finding the Fourth Proportional to 19,172,619,019.80, 28,740,788,676.90 and 11,318,062,757.40

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Solution

The fourth proportional to 19,172,619,019.80, 28,740,788,676.90 and 11,318,062,757.40 is: 16,966,385,740.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172,619,019.80 : 28,740,788,676.90 = 11,318,062,757.40 : x
  2. Step 2: Convert to fraction form
    19,172,619,019.80/28,740,788,676.90 = 11,318,062,757.40/x
  3. Step 3: Cross multiply
    19,172,619,019.80x = 28,740,788,676.90 × 11,318,062,757.40
  4. Step 4: Simplify right side
    19,172,619,019.80x = 325,290,049,942,325,493,760
  5. Step 5: Solve for x
    x = 325,290,049,942,325,493,760/19,172,619,019.80
  6. Step 6: Final answer
    x = 16,966,385,740.33

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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.