Finding the Fourth Proportional to 211,575,438.13, 317,218,273.30 and 107,743,654.66
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Solution
The fourth proportional to 211,575,438.13, 317,218,273.30 and 107,743,654.66 is: 161,541,700.65
Step by Step Solution
- Step 1: Write the proportion equation
211,575,438.13 : 317,218,273.30 = 107,743,654.66 : x - Step 2: Convert to fraction form
211,575,438.13/317,218,273.30 = 107,743,654.66/x - Step 3: Cross multiply
211,575,438.13x = 317,218,273.30 × 107,743,654.66 - Step 4: Simplify right side
211,575,438.13x = 34,178,256,090,276,700 - Step 5: Solve for x
x = 34,178,256,090,276,700/211,575,438.13 - Step 6: Final answer
x = 161,541,700.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.