Finding the Fourth Proportional to 1,687,823,972.36, 2,329,197,081.88 and 945,268,035.12
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Solution
The fourth proportional to 1,687,823,972.36, 2,329,197,081.88 and 945,268,035.12 is: 1,304,469,888.48
Step by Step Solution
- Step 1: Write the proportion equation
1,687,823,972.36 : 2,329,197,081.88 = 945,268,035.12 : x - Step 2: Convert to fraction form
1,687,823,972.36/2,329,197,081.88 = 945,268,035.12/x - Step 3: Cross multiply
1,687,823,972.36x = 2,329,197,081.88 × 945,268,035.12 - Step 4: Simplify right side
1,687,823,972.36x = 2,201,715,548,995,945,472 - Step 5: Solve for x
x = 2,201,715,548,995,945,472/1,687,823,972.36 - Step 6: Final answer
x = 1,304,469,888.48
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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.