Home / 279,936,763.60-419,905,145.40-247,058,280.40

Finding the Fourth Proportional to 279,936,763.60, 419,905,145.40 and 247,058,280.40

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Solution

The fourth proportional to 279,936,763.60, 419,905,145.40 and 247,058,280.40 is: 370,587,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,763.60 : 419,905,145.40 = 247,058,280.40 : x
  2. Step 2: Convert to fraction form
    279,936,763.60/419,905,145.40 = 247,058,280.40/x
  3. Step 3: Cross multiply
    279,936,763.60x = 419,905,145.40 × 247,058,280.40
  4. Step 4: Simplify right side
    279,936,763.60x = 103,741,043,153,635,968
  5. Step 5: Solve for x
    x = 103,741,043,153,635,968/279,936,763.60
  6. Step 6: Final answer
    x = 370,587,420.60

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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.