Finding the Fourth Proportional to 155,323,769.92, 214,351,357.88 and 84,763,935.96
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Solution
The fourth proportional to 155,323,769.92, 214,351,357.88 and 84,763,935.96 is: 116,976,717.61
Step by Step Solution
- Step 1: Write the proportion equation
155,323,769.92 : 214,351,357.88 = 84,763,935.96 : x - Step 2: Convert to fraction form
155,323,769.92/214,351,357.88 = 84,763,935.96/x - Step 3: Cross multiply
155,323,769.92x = 214,351,357.88 × 84,763,935.96 - Step 4: Simplify right side
155,323,769.92x = 18,169,264,772,279,360 - Step 5: Solve for x
x = 18,169,264,772,279,360/155,323,769.92 - Step 6: Final answer
x = 116,976,717.61
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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.