Finding the Fourth Proportional to 395,072,748.03, 545,160,658.92 and 218,827,813.77
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Solution
The fourth proportional to 395,072,748.03, 545,160,658.92 and 218,827,813.77 is: 301,960,374.99
Step by Step Solution
- Step 1: Write the proportion equation
395,072,748.03 : 545,160,658.92 = 218,827,813.77 : x - Step 2: Convert to fraction form
395,072,748.03/545,160,658.92 = 218,827,813.77/x - Step 3: Cross multiply
395,072,748.03x = 545,160,658.92 × 218,827,813.77 - Step 4: Simplify right side
395,072,748.03x = 119,296,315,144,876,240 - Step 5: Solve for x
x = 119,296,315,144,876,240/395,072,748.03 - Step 6: Final answer
x = 301,960,374.99
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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.