Home / 21,160,561,136.88-29,201,579,135.39-11,645,112,886.29

Finding the Fourth Proportional to 21,160,561,136.88, 29,201,579,135.39 and 11,645,112,886.29

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Solution

The fourth proportional to 21,160,561,136.88, 29,201,579,135.39 and 11,645,112,886.29 is: 16,070,258,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,561,136.88 : 29,201,579,135.39 = 11,645,112,886.29 : x
  2. Step 2: Convert to fraction form
    21,160,561,136.88/29,201,579,135.39 = 11,645,112,886.29/x
  3. Step 3: Cross multiply
    21,160,561,136.88x = 29,201,579,135.39 × 11,645,112,886.29
  4. Step 4: Simplify right side
    21,160,561,136.88x = 340,055,685,489,582,276,608
  5. Step 5: Solve for x
    x = 340,055,685,489,582,276,608/21,160,561,136.88
  6. Step 6: Final answer
    x = 16,070,258,406.18

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Double scale
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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.