Finding the Fourth Proportional to 8,578,293.30, 11,848,384.89 and 6,841,990.26
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Solution
The fourth proportional to 8,578,293.30, 11,848,384.89 and 6,841,990.26 is: 9,450,193.78
Step by Step Solution
- Step 1: Write the proportion equation
8,578,293.30 : 11,848,384.89 = 6,841,990.26 : x - Step 2: Convert to fraction form
8,578,293.30/11,848,384.89 = 6,841,990.26/x - Step 3: Cross multiply
8,578,293.30x = 11,848,384.89 × 6,841,990.26 - Step 4: Simplify right side
8,578,293.30x = 81,066,534,014,111.17 - Step 5: Solve for x
x = 81,066,534,014,111.17/8,578,293.30 - Step 6: Final answer
x = 9,450,193.78
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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.