Finding the Fourth Proportional to 168,434,910.70, 252,652,366.05 and 143,776,048.30
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Solution
The fourth proportional to 168,434,910.70, 252,652,366.05 and 143,776,048.30 is: 215,664,072.45
Step by Step Solution
- Step 1: Write the proportion equation
168,434,910.70 : 252,652,366.05 = 143,776,048.30 : x - Step 2: Convert to fraction form
168,434,910.70/252,652,366.05 = 143,776,048.30/x - Step 3: Cross multiply
168,434,910.70x = 252,652,366.05 × 143,776,048.30 - Step 4: Simplify right side
168,434,910.70x = 36,325,358,784,314,088 - Step 5: Solve for x
x = 36,325,358,784,314,088/168,434,910.70 - Step 6: Final answer
x = 215,664,072.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.