Finding the Fourth Proportional to 6,876,376.74, 9,489,456.18 and 4,299,551.28
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Solution
The fourth proportional to 6,876,376.74, 9,489,456.18 and 4,299,551.28 is: 5,933,415.96
Step by Step Solution
- Step 1: Write the proportion equation
6,876,376.74 : 9,489,456.18 = 4,299,551.28 : x - Step 2: Convert to fraction form
6,876,376.74/9,489,456.18 = 4,299,551.28/x - Step 3: Cross multiply
6,876,376.74x = 9,489,456.18 × 4,299,551.28 - Step 4: Simplify right side
6,876,376.74x = 40,800,403,465,222.91 - Step 5: Solve for x
x = 40,800,403,465,222.91/6,876,376.74 - Step 6: Final answer
x = 5,933,415.96
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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.