Home / 20,668,609,368.45-31,002,914,052.68-11,816,361,202.05

Finding the Fourth Proportional to 20,668,609,368.45, 31,002,914,052.68 and 11,816,361,202.05

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Solution

The fourth proportional to 20,668,609,368.45, 31,002,914,052.68 and 11,816,361,202.05 is: 17,724,541,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,609,368.45 : 31,002,914,052.68 = 11,816,361,202.05 : x
  2. Step 2: Convert to fraction form
    20,668,609,368.45/31,002,914,052.68 = 11,816,361,202.05/x
  3. Step 3: Cross multiply
    20,668,609,368.45x = 31,002,914,052.68 × 11,816,361,202.05
  4. Step 4: Simplify right side
    20,668,609,368.45x = 366,341,630,762,519,560,192
  5. Step 5: Solve for x
    x = 366,341,630,762,519,560,192/20,668,609,368.45
  6. Step 6: Final answer
    x = 17,724,541,803.08

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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.