Finding the Fourth Proportional to 235,019,841.90, 324,330,321.77 and 129,184,812.23
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Solution
The fourth proportional to 235,019,841.90, 324,330,321.77 and 129,184,812.23 is: 178,276,656.89
Step by Step Solution
- Step 1: Write the proportion equation
235,019,841.90 : 324,330,321.77 = 129,184,812.23 : x - Step 2: Convert to fraction form
235,019,841.90/324,330,321.77 = 129,184,812.23/x - Step 3: Cross multiply
235,019,841.90x = 324,330,321.77 × 129,184,812.23 - Step 4: Simplify right side
235,019,841.90x = 41,898,551,716,934,104 - Step 5: Solve for x
x = 41,898,551,716,934,104/235,019,841.90 - Step 6: Final answer
x = 178,276,656.89
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1.5x scale
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.