Home / 20,617,696.81-28,450,762.29-11,916,433.00

Finding the Fourth Proportional to 20,617,696.81, 28,450,762.29 and 11,916,433.00

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Solution

The fourth proportional to 20,617,696.81, 28,450,762.29 and 11,916,433.00 is: 16,443,718.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,696.81 : 28,450,762.29 = 11,916,433.00 : x
  2. Step 2: Convert to fraction form
    20,617,696.81/28,450,762.29 = 11,916,433.00/x
  3. Step 3: Cross multiply
    20,617,696.81x = 28,450,762.29 × 11,916,433.00
  4. Step 4: Simplify right side
    20,617,696.81x = 339,031,602,556,584.69
  5. Step 5: Solve for x
    x = 339,031,602,556,584.69/20,617,696.81
  6. Step 6: Final answer
    x = 16,443,718.51

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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.