Finding the Fourth Proportional to 1,554,451,153.92, 2,330,241,845.76 and 777,420,656.64
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Solution
The fourth proportional to 1,554,451,153.92, 2,330,241,845.76 and 777,420,656.64 is: 1,165,413,362.33
Step by Step Solution
- Step 1: Write the proportion equation
1,554,451,153.92 : 2,330,241,845.76 = 777,420,656.64 : x - Step 2: Convert to fraction form
1,554,451,153.92/2,330,241,845.76 = 777,420,656.64/x - Step 3: Cross multiply
1,554,451,153.92x = 2,330,241,845.76 × 777,420,656.64 - Step 4: Simplify right side
1,554,451,153.92x = 1,811,578,145,860,744,960 - Step 5: Solve for x
x = 1,811,578,145,860,744,960/1,554,451,153.92 - Step 6: Final answer
x = 1,165,413,362.33
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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.