Home / 279,938,435.20-419,907,652.80-98,161,993.60

Finding the Fourth Proportional to 279,938,435.20, 419,907,652.80 and 98,161,993.60

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Solution

The fourth proportional to 279,938,435.20, 419,907,652.80 and 98,161,993.60 is: 147,242,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,435.20 : 419,907,652.80 = 98,161,993.60 : x
  2. Step 2: Convert to fraction form
    279,938,435.20/419,907,652.80 = 98,161,993.60/x
  3. Step 3: Cross multiply
    279,938,435.20x = 419,907,652.80 × 98,161,993.60
  4. Step 4: Simplify right side
    279,938,435.20x = 41,218,972,326,744,624
  5. Step 5: Solve for x
    x = 41,218,972,326,744,624/279,938,435.20
  6. Step 6: Final answer
    x = 147,242,990.40

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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.