Finding the Fourth Proportional to 156,765,960.18, 216,324,770.24 and 87,147,101.70
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Solution
The fourth proportional to 156,765,960.18, 216,324,770.24 and 87,147,101.70 is: 120,256,187.83
Step by Step Solution
- Step 1: Write the proportion equation
156,765,960.18 : 216,324,770.24 = 87,147,101.70 : x - Step 2: Convert to fraction form
156,765,960.18/216,324,770.24 = 87,147,101.70/x - Step 3: Cross multiply
156,765,960.18x = 216,324,770.24 × 87,147,101.70 - Step 4: Simplify right side
156,765,960.18x = 18,852,076,752,552,284 - Step 5: Solve for x
x = 18,852,076,752,552,284/156,765,960.18 - Step 6: Final answer
x = 120,256,187.83
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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.