Finding the Fourth Proportional to 23,109,635.05, 31,924,514.96 and 18,457,311.96
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Solution
The fourth proportional to 23,109,635.05, 31,924,514.96 and 18,457,311.96 is: 25,497,621.69
Step by Step Solution
- Step 1: Write the proportion equation
23,109,635.05 : 31,924,514.96 = 18,457,311.96 : x - Step 2: Convert to fraction form
23,109,635.05/31,924,514.96 = 18,457,311.96/x - Step 3: Cross multiply
23,109,635.05x = 31,924,514.96 × 18,457,311.96 - Step 4: Simplify right side
23,109,635.05x = 589,240,731,788,407 - Step 5: Solve for x
x = 589,240,731,788,407/23,109,635.05 - Step 6: Final answer
x = 25,497,621.69
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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.