Finding the Fourth Proportional to 486,464,450.97, 730,860,778.89 and 311,929,438.53
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Solution
The fourth proportional to 486,464,450.97, 730,860,778.89 and 311,929,438.53 is: 468,640,600.46
Step by Step Solution
- Step 1: Write the proportion equation
486,464,450.97 : 730,860,778.89 = 311,929,438.53 : x - Step 2: Convert to fraction form
486,464,450.97/730,860,778.89 = 311,929,438.53/x - Step 3: Cross multiply
486,464,450.97x = 730,860,778.89 × 311,929,438.53 - Step 4: Simplify right side
486,464,450.97x = 227,976,992,402,756,160 - Step 5: Solve for x
x = 227,976,992,402,756,160/486,464,450.97 - Step 6: Final answer
x = 468,640,600.46
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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.