Home / 21,556,132,003.98-29,736,319,760.64-13,640,126,990.22

Finding the Fourth Proportional to 21,556,132,003.98, 29,736,319,760.64 and 13,640,126,990.22

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Solution

The fourth proportional to 21,556,132,003.98, 29,736,319,760.64 and 13,640,126,990.22 is: 18,816,324,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556,132,003.98 : 29,736,319,760.64 = 13,640,126,990.22 : x
  2. Step 2: Convert to fraction form
    21,556,132,003.98/29,736,319,760.64 = 13,640,126,990.22/x
  3. Step 3: Cross multiply
    21,556,132,003.98x = 29,736,319,760.64 × 13,640,126,990.22
  4. Step 4: Simplify right side
    21,556,132,003.98x = 405,607,177,756,917,956,608
  5. Step 5: Solve for x
    x = 405,607,177,756,917,956,608/21,556,132,003.98
  6. Step 6: Final answer
    x = 18,816,324,639.41

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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.