Home / 150,921,812.20-225,860,171.10-90,380,986.60

Finding the Fourth Proportional to 150,921,812.20, 225,860,171.10 and 90,380,986.60

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Solution

The fourth proportional to 150,921,812.20, 225,860,171.10 and 90,380,986.60 is: 135,258,547.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,921,812.20 : 225,860,171.10 = 90,380,986.60 : x
  2. Step 2: Convert to fraction form
    150,921,812.20/225,860,171.10 = 90,380,986.60/x
  3. Step 3: Cross multiply
    150,921,812.20x = 225,860,171.10 × 90,380,986.60
  4. Step 4: Simplify right side
    150,921,812.20x = 20,413,465,097,662,804
  5. Step 5: Solve for x
    x = 20,413,465,097,662,804/150,921,812.20
  6. Step 6: Final answer
    x = 135,258,547.46

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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.