Finding the Fourth Proportional to 28,874,242.44, 39,846,464.19 and 15,821,395.38
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Solution
The fourth proportional to 28,874,242.44, 39,846,464.19 and 15,821,395.38 is: 21,833,530.90
Step by Step Solution
- Step 1: Write the proportion equation
28,874,242.44 : 39,846,464.19 = 15,821,395.38 : x - Step 2: Convert to fraction form
28,874,242.44/39,846,464.19 = 15,821,395.38/x - Step 3: Cross multiply
28,874,242.44x = 39,846,464.19 × 15,821,395.38 - Step 4: Simplify right side
28,874,242.44x = 630,426,664,445,001.38 - Step 5: Solve for x
x = 630,426,664,445,001.38/28,874,242.44 - Step 6: Final answer
x = 21,833,530.90
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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.