Finding the Fourth Proportional to 10,304,849.85, 14,220,137.70 and 5,720,875.98
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Solution
The fourth proportional to 10,304,849.85, 14,220,137.70 and 5,720,875.98 is: 7,894,500.69
Step by Step Solution
- Step 1: Write the proportion equation
10,304,849.85 : 14,220,137.70 = 5,720,875.98 : x - Step 2: Convert to fraction form
10,304,849.85/14,220,137.70 = 5,720,875.98/x - Step 3: Cross multiply
10,304,849.85x = 14,220,137.70 × 5,720,875.98 - Step 4: Simplify right side
10,304,849.85x = 81,351,644,200,222.45 - Step 5: Solve for x
x = 81,351,644,200,222.45/10,304,849.85 - Step 6: Final answer
x = 7,894,500.69
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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.