Finding the Fourth Proportional to 122,393,036.70, 183,589,555.05 and 115,212,678.30
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Solution
The fourth proportional to 122,393,036.70, 183,589,555.05 and 115,212,678.30 is: 172,819,017.45
Step by Step Solution
- Step 1: Write the proportion equation
122,393,036.70 : 183,589,555.05 = 115,212,678.30 : x - Step 2: Convert to fraction form
122,393,036.70/183,589,555.05 = 115,212,678.30/x - Step 3: Cross multiply
122,393,036.70x = 183,589,555.05 × 115,212,678.30 - Step 4: Simplify right side
122,393,036.70x = 21,151,844,345,215,792 - Step 5: Solve for x
x = 21,151,844,345,215,792/122,393,036.70 - Step 6: Final answer
x = 172,819,017.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.