Home / 18,425,415.40-27,638,123.10-13,040,146.60

Finding the Fourth Proportional to 18,425,415.40, 27,638,123.10 and 13,040,146.60

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Solution

The fourth proportional to 18,425,415.40, 27,638,123.10 and 13,040,146.60 is: 19,560,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425,415.40 : 27,638,123.10 = 13,040,146.60 : x
  2. Step 2: Convert to fraction form
    18,425,415.40/27,638,123.10 = 13,040,146.60/x
  3. Step 3: Cross multiply
    18,425,415.40x = 27,638,123.10 × 13,040,146.60
  4. Step 4: Simplify right side
    18,425,415.40x = 360,405,176,972,846.50
  5. Step 5: Solve for x
    x = 360,405,176,972,846.50/18,425,415.40
  6. Step 6: Final answer
    x = 19,560,219.90

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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.