Finding the Fourth Proportional to 231,094,763.05, 318,724,819.99 and 203,157,740.06
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Solution
The fourth proportional to 231,094,763.05, 318,724,819.99 and 203,157,740.06 is: 280,194,208.11
Step by Step Solution
- Step 1: Write the proportion equation
231,094,763.05 : 318,724,819.99 = 203,157,740.06 : x - Step 2: Convert to fraction form
231,094,763.05/318,724,819.99 = 203,157,740.06/x - Step 3: Cross multiply
231,094,763.05x = 318,724,819.99 × 203,157,740.06 - Step 4: Simplify right side
231,094,763.05x = 64,751,414,130,198,712 - Step 5: Solve for x
x = 64,751,414,130,198,712/231,094,763.05 - Step 6: Final answer
x = 280,194,208.11
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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.