Home / 122,350,987.20-183,526,480.80-73,978,046.40

Finding the Fourth Proportional to 122,350,987.20, 183,526,480.80 and 73,978,046.40

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Solution

The fourth proportional to 122,350,987.20, 183,526,480.80 and 73,978,046.40 is: 110,967,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,350,987.20 : 183,526,480.80 = 73,978,046.40 : x
  2. Step 2: Convert to fraction form
    122,350,987.20/183,526,480.80 = 73,978,046.40/x
  3. Step 3: Cross multiply
    122,350,987.20x = 183,526,480.80 × 73,978,046.40
  4. Step 4: Simplify right side
    122,350,987.20x = 13,576,930,512,251,112
  5. Step 5: Solve for x
    x = 13,576,930,512,251,112/122,350,987.20
  6. Step 6: Final answer
    x = 110,967,069.60

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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.