Finding the Fourth Proportional to 511,216,903.20, 767,329,239.60 and 252,724,000.80
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Solution
The fourth proportional to 511,216,903.20, 767,329,239.60 and 252,724,000.80 is: 379,335,100.52
Step by Step Solution
- Step 1: Write the proportion equation
511,216,903.20 : 767,329,239.60 = 252,724,000.80 : x - Step 2: Convert to fraction form
511,216,903.20/767,329,239.60 = 252,724,000.80/x - Step 3: Cross multiply
511,216,903.20x = 767,329,239.60 × 252,724,000.80 - Step 4: Simplify right side
511,216,903.20x = 193,922,515,362,533,792 - Step 5: Solve for x
x = 193,922,515,362,533,792/511,216,903.20 - Step 6: Final answer
x = 379,335,100.52
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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.