Finding the Fourth Proportional to 4,914,918,201.70, 7,372,377,302.55 and 1,643,367,405.70
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Solution
The fourth proportional to 4,914,918,201.70, 7,372,377,302.55 and 1,643,367,405.70 is: 2,465,051,108.55
Step by Step Solution
- Step 1: Write the proportion equation
4,914,918,201.70 : 7,372,377,302.55 = 1,643,367,405.70 : x - Step 2: Convert to fraction form
4,914,918,201.70/7,372,377,302.55 = 1,643,367,405.70/x - Step 3: Cross multiply
4,914,918,201.70x = 7,372,377,302.55 × 1,643,367,405.70 - Step 4: Simplify right side
4,914,918,201.70x = 12,115,524,561,533,157,376 - Step 5: Solve for x
x = 12,115,524,561,533,157,376/4,914,918,201.70 - Step 6: Final answer
x = 2,465,051,108.55
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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.