Finding the Fourth Proportional to 7,999,315.92, 11,039,048.84 and 4,515,388.05
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Solution
The fourth proportional to 7,999,315.92, 11,039,048.84 and 4,515,388.05 is: 6,231,231.48
Step by Step Solution
- Step 1: Write the proportion equation
7,999,315.92 : 11,039,048.84 = 4,515,388.05 : x - Step 2: Convert to fraction form
7,999,315.92/11,039,048.84 = 4,515,388.05/x - Step 3: Cross multiply
7,999,315.92x = 11,039,048.84 × 4,515,388.05 - Step 4: Simplify right side
7,999,315.92x = 49,845,589,192,925.42 - Step 5: Solve for x
x = 49,845,589,192,925.42/7,999,315.92 - Step 6: Final answer
x = 6,231,231.48
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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.