Finding the Fourth Proportional to 3,999,849,398.12, 5,519,718,317.28 and 2,215,663,703.40
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Solution
The fourth proportional to 3,999,849,398.12, 5,519,718,317.28 and 2,215,663,703.40 is: 3,057,575,001.28
Step by Step Solution
- Step 1: Write the proportion equation
3,999,849,398.12 : 5,519,718,317.28 = 2,215,663,703.40 : x - Step 2: Convert to fraction form
3,999,849,398.12/5,519,718,317.28 = 2,215,663,703.40/x - Step 3: Cross multiply
3,999,849,398.12x = 5,519,718,317.28 × 2,215,663,703.40 - Step 4: Simplify right side
3,999,849,398.12x = 12,229,839,528,589,420,544 - Step 5: Solve for x
x = 12,229,839,528,589,420,544/3,999,849,398.12 - Step 6: Final answer
x = 3,057,575,001.28
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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.