Finding the Fourth Proportional to 486,464,451.97, 730,860,780.39 and 311,929,439.53
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Solution
The fourth proportional to 486,464,451.97, 730,860,780.39 and 311,929,439.53 is: 468,640,601.96
Step by Step Solution
- Step 1: Write the proportion equation
486,464,451.97 : 730,860,780.39 = 311,929,439.53 : x - Step 2: Convert to fraction form
486,464,451.97/730,860,780.39 = 311,929,439.53/x - Step 3: Cross multiply
486,464,451.97x = 730,860,780.39 × 311,929,439.53 - Step 4: Simplify right side
486,464,451.97x = 227,976,993,601,511,104 - Step 5: Solve for x
x = 227,976,993,601,511,104/486,464,451.97 - Step 6: Final answer
x = 468,640,601.96
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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.