Finding the Fourth Proportional to 1,198,215,021.90, 1,797,521,598.45 and 471,227,450.70
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Solution
The fourth proportional to 1,198,215,021.90, 1,797,521,598.45 and 471,227,450.70 is: 706,919,463.48
Step by Step Solution
- Step 1: Write the proportion equation
1,198,215,021.90 : 1,797,521,598.45 = 471,227,450.70 : x - Step 2: Convert to fraction form
1,198,215,021.90/1,797,521,598.45 = 471,227,450.70/x - Step 3: Cross multiply
1,198,215,021.90x = 1,797,521,598.45 × 471,227,450.70 - Step 4: Simplify right side
1,198,215,021.90x = 847,041,520,415,782,528 - Step 5: Solve for x
x = 847,041,520,415,782,528/1,198,215,021.90 - Step 6: Final answer
x = 706,919,463.48
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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.