Finding the Fourth Proportional to 87,841,589, 121,221,404.12 and 48,685,893.64
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Solution
The fourth proportional to 87,841,589, 121,221,404.12 and 48,685,893.64 is: 67,186,539.49
Step by Step Solution
- Step 1: Write the proportion equation
87,841,589 : 121,221,404.12 = 48,685,893.64 : x - Step 2: Convert to fraction form
87,841,589/121,221,404.12 = 48,685,893.64/x - Step 3: Cross multiply
87,841,589x = 121,221,404.12 × 48,685,893.64 - Step 4: Simplify right side
87,841,589x = 5,901,772,387,877,778 - Step 5: Solve for x
x = 5,901,772,387,877,778/87,841,589 - Step 6: Final answer
x = 67,186,539.49
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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.