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Finding the Fourth Proportional to 11,985,408,058.80, 17,978,112,088.20 and 11,985,408,058.80

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Solution

The fourth proportional to 11,985,408,058.80, 17,978,112,088.20 and 11,985,408,058.80 is: 17,978,112,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,985,408,058.80 : 17,978,112,088.20 = 11,985,408,058.80 : x
  2. Step 2: Convert to fraction form
    11,985,408,058.80/17,978,112,088.20 = 11,985,408,058.80/x
  3. Step 3: Cross multiply
    11,985,408,058.80x = 17,978,112,088.20 × 11,985,408,058.80
  4. Step 4: Simplify right side
    11,985,408,058.80x = 215,475,009,503,921,963,008
  5. Step 5: Solve for x
    x = 215,475,009,503,921,963,008/11,985,408,058.80
  6. Step 6: Final answer
    x = 17,978,112,088.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.