Home / 18,148,540.05-25,046,750.21-13,556,889.81

Finding the Fourth Proportional to 18,148,540.05, 25,046,750.21 and 13,556,889.81

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Solution

The fourth proportional to 18,148,540.05, 25,046,750.21 and 13,556,889.81 is: 18,709,826.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148,540.05 : 25,046,750.21 = 13,556,889.81 : x
  2. Step 2: Convert to fraction form
    18,148,540.05/25,046,750.21 = 13,556,889.81/x
  3. Step 3: Cross multiply
    18,148,540.05x = 25,046,750.21 × 13,556,889.81
  4. Step 4: Simplify right side
    18,148,540.05x = 339,556,032,627,779.88
  5. Step 5: Solve for x
    x = 339,556,032,627,779.88/18,148,540.05
  6. Step 6: Final answer
    x = 18,709,826.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.