Finding the Fourth Proportional to 12,121,852.52, 16,728,558.18 and 6,615,528.68
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Solution
The fourth proportional to 12,121,852.52, 16,728,558.18 and 6,615,528.68 is: 9,129,648.81
Step by Step Solution
- Step 1: Write the proportion equation
12,121,852.52 : 16,728,558.18 = 6,615,528.68 : x - Step 2: Convert to fraction form
12,121,852.52/16,728,558.18 = 6,615,528.68/x - Step 3: Cross multiply
12,121,852.52x = 16,728,558.18 × 6,615,528.68 - Step 4: Simplify right side
12,121,852.52x = 110,668,256,414,838.59 - Step 5: Solve for x
x = 110,668,256,414,838.59/12,121,852.52 - Step 6: Final answer
x = 9,129,648.81
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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.