Finding the Fourth Proportional to 1,553,632,759.99, 2,331,922,480.53 and 961,632,249.63
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Solution
The fourth proportional to 1,553,632,759.99, 2,331,922,480.53 and 961,632,249.63 is: 1,443,360,309.25
Step by Step Solution
- Step 1: Write the proportion equation
1,553,632,759.99 : 2,331,922,480.53 = 961,632,249.63 : x - Step 2: Convert to fraction form
1,553,632,759.99/2,331,922,480.53 = 961,632,249.63/x - Step 3: Cross multiply
1,553,632,759.99x = 2,331,922,480.53 × 961,632,249.63 - Step 4: Simplify right side
1,553,632,759.99x = 2,242,451,860,914,833,920 - Step 5: Solve for x
x = 2,242,451,860,914,833,920/1,553,632,759.99 - Step 6: Final answer
x = 1,443,360,309.25
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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.