Finding the Fourth Proportional to 156,616,321.80, 234,924,482.70 and 65,917,057.80
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Solution
The fourth proportional to 156,616,321.80, 234,924,482.70 and 65,917,057.80 is: 98,875,586.70
Step by Step Solution
- Step 1: Write the proportion equation
156,616,321.80 : 234,924,482.70 = 65,917,057.80 : x - Step 2: Convert to fraction form
156,616,321.80/234,924,482.70 = 65,917,057.80/x - Step 3: Cross multiply
156,616,321.80x = 234,924,482.70 × 65,917,057.80 - Step 4: Simplify right side
156,616,321.80x = 15,485,530,704,770,998 - Step 5: Solve for x
x = 15,485,530,704,770,998/156,616,321.80 - Step 6: Final answer
x = 98,875,586.70
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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.