Finding the Fourth Proportional to 1,191,490,448.46, 1,644,271,694.58 and 655,703,755.99
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Solution
The fourth proportional to 1,191,490,448.46, 1,644,271,694.58 and 655,703,755.99 is: 904,879,369.70
Step by Step Solution
- Step 1: Write the proportion equation
1,191,490,448.46 : 1,644,271,694.58 = 655,703,755.99 : x - Step 2: Convert to fraction form
1,191,490,448.46/1,644,271,694.58 = 655,703,755.99/x - Step 3: Cross multiply
1,191,490,448.46x = 1,644,271,694.58 × 655,703,755.99 - Step 4: Simplify right side
1,191,490,448.46x = 1,078,155,126,004,148,096 - Step 5: Solve for x
x = 1,078,155,126,004,148,096/1,191,490,448.46 - Step 6: Final answer
x = 904,879,369.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.