Finding the Fourth Proportional to 8,122,021.62, 11,208,403.01 and 4,450,354.74
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Solution
The fourth proportional to 8,122,021.62, 11,208,403.01 and 4,450,354.74 is: 6,141,496.76
Step by Step Solution
- Step 1: Write the proportion equation
8,122,021.62 : 11,208,403.01 = 4,450,354.74 : x - Step 2: Convert to fraction form
8,122,021.62/11,208,403.01 = 4,450,354.74/x - Step 3: Cross multiply
8,122,021.62x = 11,208,403.01 × 4,450,354.74 - Step 4: Simplify right side
8,122,021.62x = 49,881,369,463,383.77 - Step 5: Solve for x
x = 49,881,369,463,383.77/8,122,021.62 - Step 6: Final answer
x = 6,141,496.76
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1.5x scale
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.