Home / 21,160,561,169.81-29,201,579,180.82-11,645,112,919.23

Finding the Fourth Proportional to 21,160,561,169.81, 29,201,579,180.82 and 11,645,112,919.23

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Solution

The fourth proportional to 21,160,561,169.81, 29,201,579,180.82 and 11,645,112,919.23 is: 16,070,258,451.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,561,169.81 : 29,201,579,180.82 = 11,645,112,919.23 : x
  2. Step 2: Convert to fraction form
    21,160,561,169.81/29,201,579,180.82 = 11,645,112,919.23/x
  3. Step 3: Cross multiply
    21,160,561,169.81x = 29,201,579,180.82 × 11,645,112,919.23
  4. Step 4: Simplify right side
    21,160,561,169.81x = 340,055,686,980,338,778,112
  5. Step 5: Solve for x
    x = 340,055,686,980,338,778,112/21,160,561,169.81
  6. Step 6: Final answer
    x = 16,070,258,451.63

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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.