Finding the Fourth Proportional to 6,442,129.83, 8,890,308.80 and 3,541,593.75
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Solution
The fourth proportional to 6,442,129.83, 8,890,308.80 and 3,541,593.75 is: 4,887,492.63
Step by Step Solution
- Step 1: Write the proportion equation
6,442,129.83 : 8,890,308.80 = 3,541,593.75 : x - Step 2: Convert to fraction form
6,442,129.83/8,890,308.80 = 3,541,593.75/x - Step 3: Cross multiply
6,442,129.83x = 8,890,308.80 × 3,541,593.75 - Step 4: Simplify right side
6,442,129.83x = 31,485,862,063,942.03 - Step 5: Solve for x
x = 31,485,862,063,942.03/6,442,129.83 - Step 6: Final answer
x = 4,887,492.63
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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.