Finding the Fourth Proportional to 12,136,215.43, 16,748,486.42 and 6,979,581.08
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Solution
The fourth proportional to 12,136,215.43, 16,748,486.42 and 6,979,581.08 is: 9,632,114.69
Step by Step Solution
- Step 1: Write the proportion equation
12,136,215.43 : 16,748,486.42 = 6,979,581.08 : x - Step 2: Convert to fraction form
12,136,215.43/16,748,486.42 = 6,979,581.08/x - Step 3: Cross multiply
12,136,215.43x = 16,748,486.42 × 6,979,581.08 - Step 4: Simplify right side
12,136,215.43x = 116,897,418,901,437.31 - Step 5: Solve for x
x = 116,897,418,901,437.31/12,136,215.43 - Step 6: Final answer
x = 9,632,114.69
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1.5x scale
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.