Finding the Fourth Proportional to 4,992,944.99, 6,890,196.64 and 2,787,841.90
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Solution
The fourth proportional to 4,992,944.99, 6,890,196.64 and 2,787,841.90 is: 3,847,184.15
Step by Step Solution
- Step 1: Write the proportion equation
4,992,944.99 : 6,890,196.64 = 2,787,841.90 : x - Step 2: Convert to fraction form
4,992,944.99/6,890,196.64 = 2,787,841.90/x - Step 3: Cross multiply
4,992,944.99x = 6,890,196.64 × 2,787,841.90 - Step 4: Simplify right side
4,992,944.99x = 19,208,778,843,841.02 - Step 5: Solve for x
x = 19,208,778,843,841.02/4,992,944.99 - Step 6: Final answer
x = 3,847,184.15
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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.