Home / 39,974,708.93-55,165,274.37-21,639,994.43

Finding the Fourth Proportional to 39,974,708.93, 55,165,274.37 and 21,639,994.43

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Solution

The fourth proportional to 39,974,708.93, 55,165,274.37 and 21,639,994.43 is: 29,863,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,974,708.93 : 55,165,274.37 = 21,639,994.43 : x
  2. Step 2: Convert to fraction form
    39,974,708.93/55,165,274.37 = 21,639,994.43/x
  3. Step 3: Cross multiply
    39,974,708.93x = 55,165,274.37 × 21,639,994.43
  4. Step 4: Simplify right side
    39,974,708.93x = 1,193,776,229,820,395.25
  5. Step 5: Solve for x
    x = 1,193,776,229,820,395.25/39,974,708.93
  6. Step 6: Final answer
    x = 29,863,287.61

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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.