Home / 21,372,098,936.36-29,481,242,892.56-13,329,476,492.80

Finding the Fourth Proportional to 21,372,098,936.36, 29,481,242,892.56 and 13,329,476,492.80

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Solution

The fourth proportional to 21,372,098,936.36, 29,481,242,892.56 and 13,329,476,492.80 is: 18,387,035,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372,098,936.36 : 29,481,242,892.56 = 13,329,476,492.80 : x
  2. Step 2: Convert to fraction form
    21,372,098,936.36/29,481,242,892.56 = 13,329,476,492.80/x
  3. Step 3: Cross multiply
    21,372,098,936.36x = 29,481,242,892.56 × 13,329,476,492.80
  4. Step 4: Simplify right side
    21,372,098,936.36x = 392,969,534,114,905,587,712
  5. Step 5: Solve for x
    x = 392,969,534,114,905,587,712/21,372,098,936.36
  6. Step 6: Final answer
    x = 18,387,035,137.96

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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.