Finding the Fourth Proportional to 209,375,663.60, 288,940,553.92 and 115,298,558.96
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Solution
The fourth proportional to 209,375,663.60, 288,940,553.92 and 115,298,558.96 is: 159,113,188.80
Step by Step Solution
- Step 1: Write the proportion equation
209,375,663.60 : 288,940,553.92 = 115,298,558.96 : x - Step 2: Convert to fraction form
209,375,663.60/288,940,553.92 = 115,298,558.96/x - Step 3: Cross multiply
209,375,663.60x = 288,940,553.92 × 115,298,558.96 - Step 4: Simplify right side
209,375,663.60x = 33,314,429,492,080,180 - Step 5: Solve for x
x = 33,314,429,492,080,180/209,375,663.60 - Step 6: Final answer
x = 159,113,188.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.