Finding the Fourth Proportional to 512,487,007.80, 768,730,511.70 and 236,137,687.80
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Solution
The fourth proportional to 512,487,007.80, 768,730,511.70 and 236,137,687.80 is: 354,206,531.70
Step by Step Solution
- Step 1: Write the proportion equation
512,487,007.80 : 768,730,511.70 = 236,137,687.80 : x - Step 2: Convert to fraction form
512,487,007.80/768,730,511.70 = 236,137,687.80/x - Step 3: Cross multiply
512,487,007.80x = 768,730,511.70 × 236,137,687.80 - Step 4: Simplify right side
512,487,007.80x = 181,526,245,574,148,864 - Step 5: Solve for x
x = 181,526,245,574,148,864/512,487,007.80 - Step 6: Final answer
x = 354,206,531.70
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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.