Home / 28,840,143.06-39,799,394.46-15,787,410.84

Finding the Fourth Proportional to 28,840,143.06, 39,799,394.46 and 15,787,410.84

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Solution

The fourth proportional to 28,840,143.06, 39,799,394.46 and 15,787,410.84 is: 21,786,625.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840,143.06 : 39,799,394.46 = 15,787,410.84 : x
  2. Step 2: Convert to fraction form
    28,840,143.06/39,799,394.46 = 15,787,410.84/x
  3. Step 3: Cross multiply
    28,840,143.06x = 39,799,394.46 × 15,787,410.84
  4. Step 4: Simplify right side
    28,840,143.06x = 628,329,391,523,240
  5. Step 5: Solve for x
    x = 628,329,391,523,240/28,840,143.06
  6. Step 6: Final answer
    x = 21,786,625.34

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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.