Home / 21,296,967,504.21-29,390,680,518.89-11,781,355,195.44

Finding the Fourth Proportional to 21,296,967,504.21, 29,390,680,518.89 and 11,781,355,195.44

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Solution

The fourth proportional to 21,296,967,504.21, 29,390,680,518.89 and 11,781,355,195.44 is: 16,258,748,883.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296,967,504.21 : 29,390,680,518.89 = 11,781,355,195.44 : x
  2. Step 2: Convert to fraction form
    21,296,967,504.21/29,390,680,518.89 = 11,781,355,195.44/x
  3. Step 3: Cross multiply
    21,296,967,504.21x = 29,390,680,518.89 × 11,781,355,195.44
  4. Step 4: Simplify right side
    21,296,967,504.21x = 346,262,046,628,682,989,568
  5. Step 5: Solve for x
    x = 346,262,046,628,682,989,568/21,296,967,504.21
  6. Step 6: Final answer
    x = 16,258,748,883.39

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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.