Finding the Fourth Proportional to 12,398,628.42, 17,110,311.28 and 6,817,110.80
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Solution
The fourth proportional to 12,398,628.42, 17,110,311.28 and 6,817,110.80 is: 9,407,725.09
Step by Step Solution
- Step 1: Write the proportion equation
12,398,628.42 : 17,110,311.28 = 6,817,110.80 : x - Step 2: Convert to fraction form
12,398,628.42/17,110,311.28 = 6,817,110.80/x - Step 3: Cross multiply
12,398,628.42x = 17,110,311.28 × 6,817,110.80 - Step 4: Simplify right side
12,398,628.42x = 116,642,887,715,655.48 - Step 5: Solve for x
x = 116,642,887,715,655.48/12,398,628.42 - Step 6: Final answer
x = 9,407,725.09
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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.