Finding the Fourth Proportional to 165,888,022.20, 248,832,033.30 and 143,194,543.80
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Solution
The fourth proportional to 165,888,022.20, 248,832,033.30 and 143,194,543.80 is: 214,791,815.70
Step by Step Solution
- Step 1: Write the proportion equation
165,888,022.20 : 248,832,033.30 = 143,194,543.80 : x - Step 2: Convert to fraction form
165,888,022.20/248,832,033.30 = 143,194,543.80/x - Step 3: Cross multiply
165,888,022.20x = 248,832,033.30 × 143,194,543.80 - Step 4: Simplify right side
165,888,022.20x = 35,631,389,491,219,912 - Step 5: Solve for x
x = 35,631,389,491,219,912/165,888,022.20 - Step 6: Final answer
x = 214,791,815.70
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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.