Finding the Fourth Proportional to 313,173,743.50, 432,131,723.43 and 180,989,214.31
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Solution
The fourth proportional to 313,173,743.50, 432,131,723.43 and 180,989,214.31 is: 249,737,350.99
Step by Step Solution
- Step 1: Write the proportion equation
313,173,743.50 : 432,131,723.43 = 180,989,214.31 : x - Step 2: Convert to fraction form
313,173,743.50/432,131,723.43 = 180,989,214.31/x - Step 3: Cross multiply
313,173,743.50x = 432,131,723.43 × 180,989,214.31 - Step 4: Simplify right side
313,173,743.50x = 78,211,181,102,021,920 - Step 5: Solve for x
x = 78,211,181,102,021,920/313,173,743.50 - Step 6: Final answer
x = 249,737,350.99
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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.