Home / 19,901,972.78-27,465,852.92-11,956,945.21

Finding the Fourth Proportional to 19,901,972.78, 27,465,852.92 and 11,956,945.21

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Solution

The fourth proportional to 19,901,972.78, 27,465,852.92 and 11,956,945.21 is: 16,501,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901,972.78 : 27,465,852.92 = 11,956,945.21 : x
  2. Step 2: Convert to fraction form
    19,901,972.78/27,465,852.92 = 11,956,945.21/x
  3. Step 3: Cross multiply
    19,901,972.78x = 27,465,852.92 × 11,956,945.21
  4. Step 4: Simplify right side
    19,901,972.78x = 328,407,698,449,167
  5. Step 5: Solve for x
    x = 328,407,698,449,167/19,901,972.78
  6. Step 6: Final answer
    x = 16,501,263.57

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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.