Home / 21,022,155,601.50-29,010,755,615.48-11,990,370,996.66

Finding the Fourth Proportional to 21,022,155,601.50, 29,010,755,615.48 and 11,990,370,996.66

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Solution

The fourth proportional to 21,022,155,601.50, 29,010,755,615.48 and 11,990,370,996.66 is: 16,546,815,146.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,155,601.50 : 29,010,755,615.48 = 11,990,370,996.66 : x
  2. Step 2: Convert to fraction form
    21,022,155,601.50/29,010,755,615.48 = 11,990,370,996.66/x
  3. Step 3: Cross multiply
    21,022,155,601.50x = 29,010,755,615.48 × 11,990,370,996.66
  4. Step 4: Simplify right side
    21,022,155,601.50x = 347,849,722,723,042,590,720
  5. Step 5: Solve for x
    x = 347,849,722,723,042,590,720/21,022,155,601.50
  6. Step 6: Final answer
    x = 16,546,815,146.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.