Home / 18,305,999.80-27,427,506.90-11,912,961.40

Finding the Fourth Proportional to 18,305,999.80, 27,427,506.90 and 11,912,961.40

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Solution

The fourth proportional to 18,305,999.80, 27,427,506.90 and 11,912,961.40 is: 17,848,947.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305,999.80 : 27,427,506.90 = 11,912,961.40 : x
  2. Step 2: Convert to fraction form
    18,305,999.80/27,427,506.90 = 11,912,961.40/x
  3. Step 3: Cross multiply
    18,305,999.80x = 27,427,506.90 × 11,912,961.40
  4. Step 4: Simplify right side
    18,305,999.80x = 326,742,830,997,933.62
  5. Step 5: Solve for x
    x = 326,742,830,997,933.62/18,305,999.80
  6. Step 6: Final answer
    x = 17,848,947.59

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1.5x scale

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.