Finding the Fourth Proportional to 3,999,792,088, 5,519,757,217.44 and 2,215,672,868.80
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Solution
The fourth proportional to 3,999,792,088, 5,519,757,217.44 and 2,215,672,868.80 is: 3,057,653,007.95
Step by Step Solution
- Step 1: Write the proportion equation
3,999,792,088 : 5,519,757,217.44 = 2,215,672,868.80 : x - Step 2: Convert to fraction form
3,999,792,088/5,519,757,217.44 = 2,215,672,868.80/x - Step 3: Cross multiply
3,999,792,088x = 5,519,757,217.44 × 2,215,672,868.80 - Step 4: Simplify right side
3,999,792,088x = 12,229,976,309,044,791,296 - Step 5: Solve for x
x = 12,229,976,309,044,791,296/3,999,792,088 - Step 6: Final answer
x = 3,057,653,007.95
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1.5x scale
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.