Home / 20,668,609,341.20-31,002,914,011.80-11,816,361,174.80

Finding the Fourth Proportional to 20,668,609,341.20, 31,002,914,011.80 and 11,816,361,174.80

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Solution

The fourth proportional to 20,668,609,341.20, 31,002,914,011.80 and 11,816,361,174.80 is: 17,724,541,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,609,341.20 : 31,002,914,011.80 = 11,816,361,174.80 : x
  2. Step 2: Convert to fraction form
    20,668,609,341.20/31,002,914,011.80 = 11,816,361,174.80/x
  3. Step 3: Cross multiply
    20,668,609,341.20x = 31,002,914,011.80 × 11,816,361,174.80
  4. Step 4: Simplify right side
    20,668,609,341.20x = 366,341,629,434,696,368,128
  5. Step 5: Solve for x
    x = 366,341,629,434,696,368,128/20,668,609,341.20
  6. Step 6: Final answer
    x = 17,724,541,762.20

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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.