Home / 77,009,093.80-115,513,640.70-49,799,314.60

Finding the Fourth Proportional to 77,009,093.80, 115,513,640.70 and 49,799,314.60

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Solution

The fourth proportional to 77,009,093.80, 115,513,640.70 and 49,799,314.60 is: 74,698,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,009,093.80 : 115,513,640.70 = 49,799,314.60 : x
  2. Step 2: Convert to fraction form
    77,009,093.80/115,513,640.70 = 49,799,314.60/x
  3. Step 3: Cross multiply
    77,009,093.80x = 115,513,640.70 × 49,799,314.60
  4. Step 4: Simplify right side
    77,009,093.80x = 5,752,500,133,810,665
  5. Step 5: Solve for x
    x = 5,752,500,133,810,665/77,009,093.80
  6. Step 6: Final answer
    x = 74,698,971.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.