Home / 149,105,040.57-205,762,994.69-82,122,712.65

Finding the Fourth Proportional to 149,105,040.57, 205,762,994.69 and 82,122,712.65

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Solution

The fourth proportional to 149,105,040.57, 205,762,994.69 and 82,122,712.65 is: 113,328,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,105,040.57 : 205,762,994.69 = 82,122,712.65 : x
  2. Step 2: Convert to fraction form
    149,105,040.57/205,762,994.69 = 82,122,712.65/x
  3. Step 3: Cross multiply
    149,105,040.57x = 205,762,994.69 × 82,122,712.65
  4. Step 4: Simplify right side
    149,105,040.57x = 16,897,815,286,519,734
  5. Step 5: Solve for x
    x = 16,897,815,286,519,734/149,105,040.57
  6. Step 6: Final answer
    x = 113,328,263.23

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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.