Finding the Fourth Proportional to 1,999,517,218.36, 2,759,123,695.96 and 1,107,420,574.84
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Solution
The fourth proportional to 1,999,517,218.36, 2,759,123,695.96 and 1,107,420,574.84 is: 1,528,124,049.83
Step by Step Solution
- Step 1: Write the proportion equation
1,999,517,218.36 : 2,759,123,695.96 = 1,107,420,574.84 : x - Step 2: Convert to fraction form
1,999,517,218.36/2,759,123,695.96 = 1,107,420,574.84/x - Step 3: Cross multiply
1,999,517,218.36x = 2,759,123,695.96 × 1,107,420,574.84 - Step 4: Simplify right side
1,999,517,218.36x = 3,055,510,349,434,688,512 - Step 5: Solve for x
x = 3,055,510,349,434,688,512/1,999,517,218.36 - Step 6: Final answer
x = 1,528,124,049.83
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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.