Home / 21,372,098,925.38-29,481,242,877.39-13,329,476,481.81

Finding the Fourth Proportional to 21,372,098,925.38, 29,481,242,877.39 and 13,329,476,481.81

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Solution

The fourth proportional to 21,372,098,925.38, 29,481,242,877.39 and 13,329,476,481.81 is: 18,387,035,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372,098,925.38 : 29,481,242,877.39 = 13,329,476,481.81 : x
  2. Step 2: Convert to fraction form
    21,372,098,925.38/29,481,242,877.39 = 13,329,476,481.81/x
  3. Step 3: Cross multiply
    21,372,098,925.38x = 29,481,242,877.39 × 13,329,476,481.81
  4. Step 4: Simplify right side
    21,372,098,925.38x = 392,969,533,588,698,562,560
  5. Step 5: Solve for x
    x = 392,969,533,588,698,562,560/21,372,098,925.38
  6. Step 6: Final answer
    x = 18,387,035,122.79

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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.