Finding the Fourth Proportional to 1,693,166,743.80, 2,539,750,115.70 and 449,594,803.80
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Solution
The fourth proportional to 1,693,166,743.80, 2,539,750,115.70 and 449,594,803.80 is: 674,392,205.70
Step by Step Solution
- Step 1: Write the proportion equation
1,693,166,743.80 : 2,539,750,115.70 = 449,594,803.80 : x - Step 2: Convert to fraction form
1,693,166,743.80/2,539,750,115.70 = 449,594,803.80/x - Step 3: Cross multiply
1,693,166,743.80x = 2,539,750,115.70 × 449,594,803.80 - Step 4: Simplify right side
1,693,166,743.80x = 1,141,858,454,969,168,768 - Step 5: Solve for x
x = 1,141,858,454,969,168,768/1,693,166,743.80 - Step 6: Final answer
x = 674,392,205.70
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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.