Home / 69,989,418.90-104,800,420.35-49,407,999.30

Finding the Fourth Proportional to 69,989,418.90, 104,800,420.35 and 49,407,999.30

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Solution

The fourth proportional to 69,989,418.90, 104,800,420.35 and 49,407,999.30 is: 73,982,312.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,989,418.90 : 104,800,420.35 = 49,407,999.30 : x
  2. Step 2: Convert to fraction form
    69,989,418.90/104,800,420.35 = 49,407,999.30/x
  3. Step 3: Cross multiply
    69,989,418.90x = 104,800,420.35 × 49,407,999.30
  4. Step 4: Simplify right side
    69,989,418.90x = 5,177,979,095,292,505
  5. Step 5: Solve for x
    x = 5,177,979,095,292,505/69,989,418.90
  6. Step 6: Final answer
    x = 73,982,312.99

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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.