Finding the Fourth Proportional to 4,990,748, 6,887,906.16 and 2,815,737.44
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Solution
The fourth proportional to 4,990,748, 6,887,906.16 and 2,815,737.44 is: 3,886,097.89
Step by Step Solution
- Step 1: Write the proportion equation
4,990,748 : 6,887,906.16 = 2,815,737.44 : x - Step 2: Convert to fraction form
4,990,748/6,887,906.16 = 2,815,737.44/x - Step 3: Cross multiply
4,990,748x = 6,887,906.16 × 2,815,737.44 - Step 4: Simplify right side
4,990,748x = 19,394,535,257,918.63 - Step 5: Solve for x
x = 19,394,535,257,918.63/4,990,748 - Step 6: Final answer
x = 3,886,097.89
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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.