Finding the Fourth Proportional to 7,185,183,791.70, 10,777,775,687.55 and 5,250,266,159.70
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Solution
The fourth proportional to 7,185,183,791.70, 10,777,775,687.55 and 5,250,266,159.70 is: 7,875,399,239.55
Step by Step Solution
- Step 1: Write the proportion equation
7,185,183,791.70 : 10,777,775,687.55 = 5,250,266,159.70 : x - Step 2: Convert to fraction form
7,185,183,791.70/10,777,775,687.55 = 5,250,266,159.70/x - Step 3: Cross multiply
7,185,183,791.70x = 10,777,775,687.55 × 5,250,266,159.70 - Step 4: Simplify right side
7,185,183,791.70x = 56,586,190,969,181,159,424 - Step 5: Solve for x
x = 56,586,190,969,181,159,424/7,185,183,791.70 - Step 6: Final answer
x = 7,875,399,239.55
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1.5x scale
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.