Home / 21,372,098,923.86-29,481,242,875.32-13,329,476,480.31

Finding the Fourth Proportional to 21,372,098,923.86, 29,481,242,875.32 and 13,329,476,480.31

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Solution

The fourth proportional to 21,372,098,923.86, 29,481,242,875.32 and 13,329,476,480.31 is: 18,387,035,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,372,098,923.86 : 29,481,242,875.32 = 13,329,476,480.31 : x
  2. Step 2: Convert to fraction form
    21,372,098,923.86/29,481,242,875.32 = 13,329,476,480.31/x
  3. Step 3: Cross multiply
    21,372,098,923.86x = 29,481,242,875.32 × 13,329,476,480.31
  4. Step 4: Simplify right side
    21,372,098,923.86x = 392,969,533,516,884,672,512
  5. Step 5: Solve for x
    x = 392,969,533,516,884,672,512/21,372,098,923.86
  6. Step 6: Final answer
    x = 18,387,035,120.74

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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.