Home / 21,160,561,138.57-29,201,579,137.72-11,645,112,887.98

Finding the Fourth Proportional to 21,160,561,138.57, 29,201,579,137.72 and 11,645,112,887.98

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Solution

The fourth proportional to 21,160,561,138.57, 29,201,579,137.72 and 11,645,112,887.98 is: 16,070,258,408.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,561,138.57 : 29,201,579,137.72 = 11,645,112,887.98 : x
  2. Step 2: Convert to fraction form
    21,160,561,138.57/29,201,579,137.72 = 11,645,112,887.98/x
  3. Step 3: Cross multiply
    21,160,561,138.57x = 29,201,579,137.72 × 11,645,112,887.98
  4. Step 4: Simplify right side
    21,160,561,138.57x = 340,055,685,565,943,447,552
  5. Step 5: Solve for x
    x = 340,055,685,565,943,447,552/21,160,561,138.57
  6. Step 6: Final answer
    x = 16,070,258,408.51

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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.