Home / 9,978,999.75-13,771,017.36-5,628,076.70

Finding the Fourth Proportional to 9,978,999.75, 13,771,017.36 and 5,628,076.70

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Solution

The fourth proportional to 9,978,999.75, 13,771,017.36 and 5,628,076.70 is: 7,766,744.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,999.75 : 13,771,017.36 = 5,628,076.70 : x
  2. Step 2: Convert to fraction form
    9,978,999.75/13,771,017.36 = 5,628,076.70/x
  3. Step 3: Cross multiply
    9,978,999.75x = 13,771,017.36 × 5,628,076.70
  4. Step 4: Simplify right side
    9,978,999.75x = 77,504,341,870,256.42
  5. Step 5: Solve for x
    x = 77,504,341,870,256.42/9,978,999.75
  6. Step 6: Final answer
    x = 7,766,744.54

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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.