Finding the Fourth Proportional to 154,246,783.97, 212,864,478.83 and 84,632,146.40
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Solution
The fourth proportional to 154,246,783.97, 212,864,478.83 and 84,632,146.40 is: 116,794,511.18
Step by Step Solution
- Step 1: Write the proportion equation
154,246,783.97 : 212,864,478.83 = 84,632,146.40 : x - Step 2: Convert to fraction form
154,246,783.97/212,864,478.83 = 84,632,146.40/x - Step 3: Cross multiply
154,246,783.97x = 212,864,478.83 × 84,632,146.40 - Step 4: Simplify right side
154,246,783.97x = 18,015,177,735,168,100 - Step 5: Solve for x
x = 18,015,177,735,168,100/154,246,783.97 - Step 6: Final answer
x = 116,794,511.18
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.