Home / 20,128,718,071.05-27,777,714,839.42-11,096,277,747.72

Finding the Fourth Proportional to 20,128,718,071.05, 27,777,714,839.42 and 11,096,277,747.72

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Solution

The fourth proportional to 20,128,718,071.05, 27,777,714,839.42 and 11,096,277,747.72 is: 15,312,909,543.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,128,718,071.05 : 27,777,714,839.42 = 11,096,277,747.72 : x
  2. Step 2: Convert to fraction form
    20,128,718,071.05/27,777,714,839.42 = 11,096,277,747.72/x
  3. Step 3: Cross multiply
    20,128,718,071.05x = 27,777,714,839.42 × 11,096,277,747.72
  4. Step 4: Simplify right side
    20,128,718,071.05x = 308,229,239,055,112,273,920
  5. Step 5: Solve for x
    x = 308,229,239,055,112,273,920/20,128,718,071.05
  6. Step 6: Final answer
    x = 15,312,909,543.82

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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.