Home / 21,004,552.80-31,554,068.40-20,201,486.40

Finding the Fourth Proportional to 21,004,552.80, 31,554,068.40 and 20,201,486.40

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Solution

The fourth proportional to 21,004,552.80, 31,554,068.40 and 20,201,486.40 is: 30,347,662.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,552.80 : 31,554,068.40 = 20,201,486.40 : x
  2. Step 2: Convert to fraction form
    21,004,552.80/31,554,068.40 = 20,201,486.40/x
  3. Step 3: Cross multiply
    21,004,552.80x = 31,554,068.40 × 20,201,486.40
  4. Step 4: Simplify right side
    21,004,552.80x = 637,439,083,647,269.62
  5. Step 5: Solve for x
    x = 637,439,083,647,269.62/21,004,552.80
  6. Step 6: Final answer
    x = 30,347,662.71

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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.