Home / 38,428,129.89-53,032,083.89-21,024,076.84

Finding the Fourth Proportional to 38,428,129.89, 53,032,083.89 and 21,024,076.84

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Solution

The fourth proportional to 38,428,129.89, 53,032,083.89 and 21,024,076.84 is: 29,013,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428,129.89 : 53,032,083.89 = 21,024,076.84 : x
  2. Step 2: Convert to fraction form
    38,428,129.89/53,032,083.89 = 21,024,076.84/x
  3. Step 3: Cross multiply
    38,428,129.89x = 53,032,083.89 × 21,024,076.84
  4. Step 4: Simplify right side
    38,428,129.89x = 1,114,950,606,476,085.88
  5. Step 5: Solve for x
    x = 1,114,950,606,476,085.88/38,428,129.89
  6. Step 6: Final answer
    x = 29,013,917.92

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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.