Home / 13,121,998.40-19,647,568.20-13,121,998.40

Finding the Fourth Proportional to 13,121,998.40, 19,647,568.20 and 13,121,998.40

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Solution

The fourth proportional to 13,121,998.40, 19,647,568.20 and 13,121,998.40 is: 19,647,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121,998.40 : 19,647,568.20 = 13,121,998.40 : x
  2. Step 2: Convert to fraction form
    13,121,998.40/19,647,568.20 = 13,121,998.40/x
  3. Step 3: Cross multiply
    13,121,998.40x = 19,647,568.20 × 13,121,998.40
  4. Step 4: Simplify right side
    13,121,998.40x = 257,815,358,484,290.88
  5. Step 5: Solve for x
    x = 257,815,358,484,290.88/13,121,998.40
  6. Step 6: Final answer
    x = 19,647,568.20

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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.