Finding the Fourth Proportional to 306,195,007.80, 459,292,511.70 and 220,101,565.80
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Solution
The fourth proportional to 306,195,007.80, 459,292,511.70 and 220,101,565.80 is: 330,152,348.70
Step by Step Solution
- Step 1: Write the proportion equation
306,195,007.80 : 459,292,511.70 = 220,101,565.80 : x - Step 2: Convert to fraction form
306,195,007.80/459,292,511.70 = 220,101,565.80/x - Step 3: Cross multiply
306,195,007.80x = 459,292,511.70 × 220,101,565.80 - Step 4: Simplify right side
306,195,007.80x = 101,091,000,985,384,816 - Step 5: Solve for x
x = 101,091,000,985,384,816/306,195,007.80 - Step 6: Final answer
x = 330,152,348.70
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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.