Home / 21,004,411.37-28,985,371.55-11,585,575.54

Finding the Fourth Proportional to 21,004,411.37, 28,985,371.55 and 11,585,575.54

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Solution

The fourth proportional to 21,004,411.37, 28,985,371.55 and 11,585,575.54 is: 15,987,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,411.37 : 28,985,371.55 = 11,585,575.54 : x
  2. Step 2: Convert to fraction form
    21,004,411.37/28,985,371.55 = 11,585,575.54/x
  3. Step 3: Cross multiply
    21,004,411.37x = 28,985,371.55 × 11,585,575.54
  4. Step 4: Simplify right side
    21,004,411.37x = 335,812,211,647,491.88
  5. Step 5: Solve for x
    x = 335,812,211,647,491.88/21,004,411.37
  6. Step 6: Final answer
    x = 15,987,699.24

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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.