Home / 20,668,609,376.20-31,002,914,064.30-11,816,361,209.80

Finding the Fourth Proportional to 20,668,609,376.20, 31,002,914,064.30 and 11,816,361,209.80

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Solution

The fourth proportional to 20,668,609,376.20, 31,002,914,064.30 and 11,816,361,209.80 is: 17,724,541,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,609,376.20 : 31,002,914,064.30 = 11,816,361,209.80 : x
  2. Step 2: Convert to fraction form
    20,668,609,376.20/31,002,914,064.30 = 11,816,361,209.80/x
  3. Step 3: Cross multiply
    20,668,609,376.20x = 31,002,914,064.30 × 11,816,361,209.80
  4. Step 4: Simplify right side
    20,668,609,376.20x = 366,341,631,140,157,325,312
  5. Step 5: Solve for x
    x = 366,341,631,140,157,325,312/20,668,609,376.20
  6. Step 6: Final answer
    x = 17,724,541,814.70

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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.