Finding the Fourth Proportional to 168,185,747.70, 252,278,621.55 and 122,836,115.70
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Solution
The fourth proportional to 168,185,747.70, 252,278,621.55 and 122,836,115.70 is: 184,254,173.55
Step by Step Solution
- Step 1: Write the proportion equation
168,185,747.70 : 252,278,621.55 = 122,836,115.70 : x - Step 2: Convert to fraction form
168,185,747.70/252,278,621.55 = 122,836,115.70/x - Step 3: Cross multiply
168,185,747.70x = 252,278,621.55 × 122,836,115.70 - Step 4: Simplify right side
168,185,747.70x = 30,988,925,945,352,316 - Step 5: Solve for x
x = 30,988,925,945,352,316/168,185,747.70 - Step 6: Final answer
x = 184,254,173.55
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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.