Home / 21,004,412.36-28,985,372.93-11,585,576.54

Finding the Fourth Proportional to 21,004,412.36, 28,985,372.93 and 11,585,576.54

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Solution

The fourth proportional to 21,004,412.36, 28,985,372.93 and 11,585,576.54 is: 15,987,700.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,412.36 : 28,985,372.93 = 11,585,576.54 : x
  2. Step 2: Convert to fraction form
    21,004,412.36/28,985,372.93 = 11,585,576.54/x
  3. Step 3: Cross multiply
    21,004,412.36x = 28,985,372.93 × 11,585,576.54
  4. Step 4: Simplify right side
    21,004,412.36x = 335,812,256,620,959.06
  5. Step 5: Solve for x
    x = 335,812,256,620,959.06/21,004,412.36
  6. Step 6: Final answer
    x = 15,987,700.63

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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.