Finding the Fourth Proportional to 177,853,651.80, 266,780,477.70 and 147,620,563.80
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Solution
The fourth proportional to 177,853,651.80, 266,780,477.70 and 147,620,563.80 is: 221,430,845.70
Step by Step Solution
- Step 1: Write the proportion equation
177,853,651.80 : 266,780,477.70 = 147,620,563.80 : x - Step 2: Convert to fraction form
177,853,651.80/266,780,477.70 = 147,620,563.80/x - Step 3: Cross multiply
177,853,651.80x = 266,780,477.70 × 147,620,563.80 - Step 4: Simplify right side
177,853,651.80x = 39,382,284,528,907,328 - Step 5: Solve for x
x = 39,382,284,528,907,328/177,853,651.80 - Step 6: Final answer
x = 221,430,845.70
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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.