Finding the Fourth Proportional to 211,028,274.54, 291,235,174.66 and 132,778,901.70
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Solution
The fourth proportional to 211,028,274.54, 291,235,174.66 and 132,778,901.70 is: 183,245,049.56
Step by Step Solution
- Step 1: Write the proportion equation
211,028,274.54 : 291,235,174.66 = 132,778,901.70 : x - Step 2: Convert to fraction form
211,028,274.54/291,235,174.66 = 132,778,901.70/x - Step 3: Cross multiply
211,028,274.54x = 291,235,174.66 × 132,778,901.70 - Step 4: Simplify right side
211,028,274.54x = 38,669,886,626,306,296 - Step 5: Solve for x
x = 38,669,886,626,306,296/211,028,274.54 - Step 6: Final answer
x = 183,245,049.56
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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.