Home / 81,657,220.80-122,485,831.20-27,804,532.80

Finding the Fourth Proportional to 81,657,220.80, 122,485,831.20 and 27,804,532.80

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Solution

The fourth proportional to 81,657,220.80, 122,485,831.20 and 27,804,532.80 is: 41,706,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,657,220.80 : 122,485,831.20 = 27,804,532.80 : x
  2. Step 2: Convert to fraction form
    81,657,220.80/122,485,831.20 = 27,804,532.80/x
  3. Step 3: Cross multiply
    81,657,220.80x = 122,485,831.20 × 27,804,532.80
  4. Step 4: Simplify right side
    81,657,220.80x = 3,405,661,311,135,663.50
  5. Step 5: Solve for x
    x = 3,405,661,311,135,663.50/81,657,220.80
  6. Step 6: Final answer
    x = 41,706,799.20

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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.