Finding the Fourth Proportional to 5,429,971.88, 8,137,391.40 and 4,080,558.68
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Solution
The fourth proportional to 5,429,971.88, 8,137,391.40 and 4,080,558.68 is: 6,115,151.95
Step by Step Solution
- Step 1: Write the proportion equation
5,429,971.88 : 8,137,391.40 = 4,080,558.68 : x - Step 2: Convert to fraction form
5,429,971.88/8,137,391.40 = 4,080,558.68/x - Step 3: Cross multiply
5,429,971.88x = 8,137,391.40 × 4,080,558.68 - Step 4: Simplify right side
5,429,971.88x = 33,205,103,109,827.36 - Step 5: Solve for x
x = 33,205,103,109,827.36/5,429,971.88 - Step 6: Final answer
x = 6,115,151.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.