Finding the Fourth Proportional to 3,999,849,399.12, 5,519,718,318.66 and 2,215,663,704.40
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Solution
The fourth proportional to 3,999,849,399.12, 5,519,718,318.66 and 2,215,663,704.40 is: 3,057,575,002.66
Step by Step Solution
- Step 1: Write the proportion equation
3,999,849,399.12 : 5,519,718,318.66 = 2,215,663,704.40 : x - Step 2: Convert to fraction form
3,999,849,399.12/5,519,718,318.66 = 2,215,663,704.40/x - Step 3: Cross multiply
3,999,849,399.12x = 5,519,718,318.66 × 2,215,663,704.40 - Step 4: Simplify right side
3,999,849,399.12x = 12,229,839,537,166,755,840 - Step 5: Solve for x
x = 12,229,839,537,166,755,840/3,999,849,399.12 - Step 6: Final answer
x = 3,057,575,002.66
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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.