Home / 39,974,709.30-55,165,274.89-21,639,994.80

Finding the Fourth Proportional to 39,974,709.30, 55,165,274.89 and 21,639,994.80

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Solution

The fourth proportional to 39,974,709.30, 55,165,274.89 and 21,639,994.80 is: 29,863,288.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,974,709.30 : 55,165,274.89 = 21,639,994.80 : x
  2. Step 2: Convert to fraction form
    39,974,709.30/55,165,274.89 = 21,639,994.80/x
  3. Step 3: Cross multiply
    39,974,709.30x = 55,165,274.89 × 21,639,994.80
  4. Step 4: Simplify right side
    39,974,709.30x = 1,193,776,261,706,070.75
  5. Step 5: Solve for x
    x = 1,193,776,261,706,070.75/39,974,709.30
  6. Step 6: Final answer
    x = 29,863,288.13

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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.