Finding the Fourth Proportional to 511,014,020.75, 766,527,174.05 and 142,526,543.99
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Solution
The fourth proportional to 511,014,020.75, 766,527,174.05 and 142,526,543.99 is: 213,791,529.30
Step by Step Solution
- Step 1: Write the proportion equation
511,014,020.75 : 766,527,174.05 = 142,526,543.99 : x - Step 2: Convert to fraction form
511,014,020.75/766,527,174.05 = 142,526,543.99/x - Step 3: Cross multiply
511,014,020.75x = 766,527,174.05 × 142,526,543.99 - Step 4: Simplify right side
511,014,020.75x = 109,250,468,991,055,072 - Step 5: Solve for x
x = 109,250,468,991,055,072/511,014,020.75 - Step 6: Final answer
x = 213,791,529.30
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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.