Finding the Fourth Proportional to 137,019,227.30, 189,090,251.69 and 77,489,425.44
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Solution
The fourth proportional to 137,019,227.30, 189,090,251.69 and 77,489,425.44 is: 106,937,509.78
Step by Step Solution
- Step 1: Write the proportion equation
137,019,227.30 : 189,090,251.69 = 77,489,425.44 : x - Step 2: Convert to fraction form
137,019,227.30/189,090,251.69 = 77,489,425.44/x - Step 3: Cross multiply
137,019,227.30x = 189,090,251.69 × 77,489,425.44 - Step 4: Simplify right side
137,019,227.30x = 14,652,494,960,166,450 - Step 5: Solve for x
x = 14,652,494,960,166,450/137,019,227.30 - Step 6: Final answer
x = 106,937,509.78
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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.