Finding the Fourth Proportional to 29,442,921.68, 40,632,196.84 and 16,213,512.65
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Solution
The fourth proportional to 29,442,921.68, 40,632,196.84 and 16,213,512.65 is: 22,375,178.81
Step by Step Solution
- Step 1: Write the proportion equation
29,442,921.68 : 40,632,196.84 = 16,213,512.65 : x - Step 2: Convert to fraction form
29,442,921.68/40,632,196.84 = 16,213,512.65/x - Step 3: Cross multiply
29,442,921.68x = 40,632,196.84 × 16,213,512.65 - Step 4: Simplify right side
29,442,921.68x = 658,790,637,218,935.25 - Step 5: Solve for x
x = 658,790,637,218,935.25/29,442,921.68 - Step 6: Final answer
x = 22,375,178.81
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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.