Finding the Fourth Proportional to 189,427,686.70, 261,266,163.64 and 163,010,566.52
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Solution
The fourth proportional to 189,427,686.70, 261,266,163.64 and 163,010,566.52 is: 224,830,625.82
Step by Step Solution
- Step 1: Write the proportion equation
189,427,686.70 : 261,266,163.64 = 163,010,566.52 : x - Step 2: Convert to fraction form
189,427,686.70/261,266,163.64 = 163,010,566.52/x - Step 3: Cross multiply
189,427,686.70x = 261,266,163.64 × 163,010,566.52 - Step 4: Simplify right side
189,427,686.70x = 42,589,145,347,463,424 - Step 5: Solve for x
x = 42,589,145,347,463,424/189,427,686.70 - Step 6: Final answer
x = 224,830,625.82
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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.