Finding the Fourth Proportional to 7,398,376.80, 11,081,818.80 and 6,138,664.80
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Solution
The fourth proportional to 7,398,376.80, 11,081,818.80 and 6,138,664.80 is: 9,194,931.92
Step by Step Solution
- Step 1: Write the proportion equation
7,398,376.80 : 11,081,818.80 = 6,138,664.80 : x - Step 2: Convert to fraction form
7,398,376.80/11,081,818.80 = 6,138,664.80/x - Step 3: Cross multiply
7,398,376.80x = 11,081,818.80 × 6,138,664.80 - Step 4: Simplify right side
7,398,376.80x = 68,027,570,987,538.24 - Step 5: Solve for x
x = 68,027,570,987,538.24/7,398,376.80 - Step 6: Final answer
x = 9,194,931.92
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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.