Finding the Fourth Proportional to 137,173,475.07, 189,299,583.05 and 74,449,573.98
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Solution
The fourth proportional to 137,173,475.07, 189,299,583.05 and 74,449,573.98 is: 102,740,513.83
Step by Step Solution
- Step 1: Write the proportion equation
137,173,475.07 : 189,299,583.05 = 74,449,573.98 : x - Step 2: Convert to fraction form
137,173,475.07/189,299,583.05 = 74,449,573.98/x - Step 3: Cross multiply
137,173,475.07x = 189,299,583.05 × 74,449,573.98 - Step 4: Simplify right side
137,173,475.07x = 14,093,273,312,291,880 - Step 5: Solve for x
x = 14,093,273,312,291,880/137,173,475.07 - Step 6: Final answer
x = 102,740,513.83
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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.