Finding the Fourth Proportional to 1,651,891,888.84, 2,477,864,107.50 and 919,616,171.08
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Solution
The fourth proportional to 1,651,891,888.84, 2,477,864,107.50 and 919,616,171.08 is: 1,379,438,883.62
Step by Step Solution
- Step 1: Write the proportion equation
1,651,891,888.84 : 2,477,864,107.50 = 919,616,171.08 : x - Step 2: Convert to fraction form
1,651,891,888.84/2,477,864,107.50 = 919,616,171.08/x - Step 3: Cross multiply
1,651,891,888.84x = 2,477,864,107.50 × 919,616,171.08 - Step 4: Simplify right side
1,651,891,888.84x = 2,278,683,902,995,711,744 - Step 5: Solve for x
x = 2,278,683,902,995,711,744/1,651,891,888.84 - Step 6: Final answer
x = 1,379,438,883.62
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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.