Finding the Fourth Proportional to 486,464,388.59, 730,860,685.05 and 311,929,375.99
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Solution
The fourth proportional to 486,464,388.59, 730,860,685.05 and 311,929,375.99 is: 468,640,506.41
Step by Step Solution
- Step 1: Write the proportion equation
486,464,388.59 : 730,860,685.05 = 311,929,375.99 : x - Step 2: Convert to fraction form
486,464,388.59/730,860,685.05 = 311,929,375.99/x - Step 3: Cross multiply
486,464,388.59x = 730,860,685.05 × 311,929,375.99 - Step 4: Simplify right side
486,464,388.59x = 227,976,917,418,056,480 - Step 5: Solve for x
x = 227,976,917,418,056,480/486,464,388.59 - Step 6: Final answer
x = 468,640,506.41
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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.