Home / 20,970,065,588.06-28,938,689,404.81-11,324,794,629.17

Finding the Fourth Proportional to 20,970,065,588.06, 28,938,689,404.81 and 11,324,794,629.17

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Solution

The fourth proportional to 20,970,065,588.06, 28,938,689,404.81 and 11,324,794,629.17 is: 15,628,215,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970,065,588.06 : 28,938,689,404.81 = 11,324,794,629.17 : x
  2. Step 2: Convert to fraction form
    20,970,065,588.06/28,938,689,404.81 = 11,324,794,629.17/x
  3. Step 3: Cross multiply
    20,970,065,588.06x = 28,938,689,404.81 × 11,324,794,629.17
  4. Step 4: Simplify right side
    20,970,065,588.06x = 327,724,714,346,863,919,104
  5. Step 5: Solve for x
    x = 327,724,714,346,863,919,104/20,970,065,588.06
  6. Step 6: Final answer
    x = 15,628,215,990.58

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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.