Finding the Fourth Proportional to 187,173,003.84, 258,211,704.06 and 121,114,826.79
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Solution
The fourth proportional to 187,173,003.84, 258,211,704.06 and 121,114,826.79 is: 167,082,138.83
Step by Step Solution
- Step 1: Write the proportion equation
187,173,003.84 : 258,211,704.06 = 121,114,826.79 : x - Step 2: Convert to fraction form
187,173,003.84/258,211,704.06 = 121,114,826.79/x - Step 3: Cross multiply
187,173,003.84x = 258,211,704.06 × 121,114,826.79 - Step 4: Simplify right side
187,173,003.84x = 31,273,265,812,377,640 - Step 5: Solve for x
x = 31,273,265,812,377,640/187,173,003.84 - Step 6: Final answer
x = 167,082,138.83
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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.