Finding the Fourth Proportional to 137,586,596.96, 189,863,810.97 and 74,862,952.99
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Solution
The fourth proportional to 137,586,596.96, 189,863,810.97 and 74,862,952.99 is: 103,307,777.56
Step by Step Solution
- Step 1: Write the proportion equation
137,586,596.96 : 189,863,810.97 = 74,862,952.99 : x - Step 2: Convert to fraction form
137,586,596.96/189,863,810.97 = 74,862,952.99/x - Step 3: Cross multiply
137,586,596.96x = 189,863,810.97 × 74,862,952.99 - Step 4: Simplify right side
137,586,596.96x = 14,213,765,554,393,960 - Step 5: Solve for x
x = 14,213,765,554,393,960/137,586,596.96 - Step 6: Final answer
x = 103,307,777.56
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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.