Finding the Fourth Proportional to 373,389,313.06, 515,263,740.19 and 206,121,981.67
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Solution
The fourth proportional to 373,389,313.06, 515,263,740.19 and 206,121,981.67 is: 284,440,875.78
Step by Step Solution
- Step 1: Write the proportion equation
373,389,313.06 : 515,263,740.19 = 206,121,981.67 : x - Step 2: Convert to fraction form
373,389,313.06/515,263,740.19 = 206,121,981.67/x - Step 3: Cross multiply
373,389,313.06x = 515,263,740.19 × 206,121,981.67 - Step 4: Simplify right side
373,389,313.06x = 106,207,183,212,911,600 - Step 5: Solve for x
x = 106,207,183,212,911,600/373,389,313.06 - Step 6: Final answer
x = 284,440,875.78
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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.