Finding the Fourth Proportional to 1,324,245,207.20, 1,985,678,088.51 and 624,549,474.48
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Solution
The fourth proportional to 1,324,245,207.20, 1,985,678,088.51 and 624,549,474.48 is: 936,498,920.23
Step by Step Solution
- Step 1: Write the proportion equation
1,324,245,207.20 : 1,985,678,088.51 = 624,549,474.48 : x - Step 2: Convert to fraction form
1,324,245,207.20/1,985,678,088.51 = 624,549,474.48/x - Step 3: Cross multiply
1,324,245,207.20x = 1,985,678,088.51 × 624,549,474.48 - Step 4: Simplify right side
1,324,245,207.20x = 1,240,154,206,665,371,392 - Step 5: Solve for x
x = 1,240,154,206,665,371,392/1,324,245,207.20 - Step 6: Final answer
x = 936,498,920.23
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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.