Home / 278,131,720.61-416,880,218.70-112,028,912.34

Finding the Fourth Proportional to 278,131,720.61, 416,880,218.70 and 112,028,912.34

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Solution

The fourth proportional to 278,131,720.61, 416,880,218.70 and 112,028,912.34 is: 167,915,537.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,131,720.61 : 416,880,218.70 = 112,028,912.34 : x
  2. Step 2: Convert to fraction form
    278,131,720.61/416,880,218.70 = 112,028,912.34/x
  3. Step 3: Cross multiply
    278,131,720.61x = 416,880,218.70 × 112,028,912.34
  4. Step 4: Simplify right side
    278,131,720.61x = 46,702,637,477,022,328
  5. Step 5: Solve for x
    x = 46,702,637,477,022,328/278,131,720.61
  6. Step 6: Final answer
    x = 167,915,537.91

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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.