Finding the Fourth Proportional to 6,143,618.81, 8,478,197.61 and 3,427,364.81
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Solution
The fourth proportional to 6,143,618.81, 8,478,197.61 and 3,427,364.81 is: 4,729,765.48
Step by Step Solution
- Step 1: Write the proportion equation
6,143,618.81 : 8,478,197.61 = 3,427,364.81 : x - Step 2: Convert to fraction form
6,143,618.81/8,478,197.61 = 3,427,364.81/x - Step 3: Cross multiply
6,143,618.81x = 8,478,197.61 × 3,427,364.81 - Step 4: Simplify right side
6,143,618.81x = 29,057,876,174,788.21 - Step 5: Solve for x
x = 29,057,876,174,788.21/6,143,618.81 - Step 6: Final answer
x = 4,729,765.48
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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.