Finding the Fourth Proportional to 4,428,657,205.20, 6,643,064,539.80 and 1,323,278,168.40
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Solution
The fourth proportional to 4,428,657,205.20, 6,643,064,539.80 and 1,323,278,168.40 is: 1,984,940,777.64
Step by Step Solution
- Step 1: Write the proportion equation
4,428,657,205.20 : 6,643,064,539.80 = 1,323,278,168.40 : x - Step 2: Convert to fraction form
4,428,657,205.20/6,643,064,539.80 = 1,323,278,168.40/x - Step 3: Cross multiply
4,428,657,205.20x = 6,643,064,539.80 × 1,323,278,168.40 - Step 4: Simplify right side
4,428,657,205.20x = 8,790,622,276,789,533,696 - Step 5: Solve for x
x = 8,790,622,276,789,533,696/4,428,657,205.20 - Step 6: Final answer
x = 1,984,940,777.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.