Home / 18,705,611.80-28,058,417.70-11,493,760.60

Finding the Fourth Proportional to 18,705,611.80, 28,058,417.70 and 11,493,760.60

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Solution

The fourth proportional to 18,705,611.80, 28,058,417.70 and 11,493,760.60 is: 17,240,640.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705,611.80 : 28,058,417.70 = 11,493,760.60 : x
  2. Step 2: Convert to fraction form
    18,705,611.80/28,058,417.70 = 11,493,760.60/x
  3. Step 3: Cross multiply
    18,705,611.80x = 28,058,417.70 × 11,493,760.60
  4. Step 4: Simplify right side
    18,705,611.80x = 322,496,735,858,602.62
  5. Step 5: Solve for x
    x = 322,496,735,858,602.62/18,705,611.80
  6. Step 6: Final answer
    x = 17,240,640.90

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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.