Finding the Fourth Proportional to 8,379,934.48, 11,563,984.16 and 5,122,203.76
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Solution
The fourth proportional to 8,379,934.48, 11,563,984.16 and 5,122,203.76 is: 7,068,442.28
Step by Step Solution
- Step 1: Write the proportion equation
8,379,934.48 : 11,563,984.16 = 5,122,203.76 : x - Step 2: Convert to fraction form
8,379,934.48/11,563,984.16 = 5,122,203.76/x - Step 3: Cross multiply
8,379,934.48x = 11,563,984.16 × 5,122,203.76 - Step 4: Simplify right side
8,379,934.48x = 59,233,083,144,932.44 - Step 5: Solve for x
x = 59,233,083,144,932.44/8,379,934.48 - Step 6: Final answer
x = 7,068,442.28
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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.