Finding the Fourth Proportional to 8,122,021.12, 11,208,402.32 and 4,450,354.24
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Solution
The fourth proportional to 8,122,021.12, 11,208,402.32 and 4,450,354.24 is: 6,141,496.07
Step by Step Solution
- Step 1: Write the proportion equation
8,122,021.12 : 11,208,402.32 = 4,450,354.24 : x - Step 2: Convert to fraction form
8,122,021.12/11,208,402.32 = 4,450,354.24/x - Step 3: Cross multiply
8,122,021.12x = 11,208,402.32 × 4,450,354.24 - Step 4: Simplify right side
8,122,021.12x = 49,881,360,788,437.84 - Step 5: Solve for x
x = 49,881,360,788,437.84/8,122,021.12 - Step 6: Final answer
x = 6,141,496.07
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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.