Home / 13,206,431.80-19,798,127.70-5,124,921.40

Finding the Fourth Proportional to 13,206,431.80, 19,798,127.70 and 5,124,921.40

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Solution

The fourth proportional to 13,206,431.80, 19,798,127.70 and 5,124,921.40 is: 7,682,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,431.80 : 19,798,127.70 = 5,124,921.40 : x
  2. Step 2: Convert to fraction form
    13,206,431.80/19,798,127.70 = 5,124,921.40/x
  3. Step 3: Cross multiply
    13,206,431.80x = 19,798,127.70 × 5,124,921.40
  4. Step 4: Simplify right side
    13,206,431.80x = 101,463,848,329,662.78
  5. Step 5: Solve for x
    x = 101,463,848,329,662.78/13,206,431.80
  6. Step 6: Final answer
    x = 7,682,911.62

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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.