Finding the Fourth Proportional to 279,936,775.60, 419,905,163.40 and 177,816,122.80
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Solution
The fourth proportional to 279,936,775.60, 419,905,163.40 and 177,816,122.80 is: 266,724,184.20
Step by Step Solution
- Step 1: Write the proportion equation
279,936,775.60 : 419,905,163.40 = 177,816,122.80 : x - Step 2: Convert to fraction form
279,936,775.60/419,905,163.40 = 177,816,122.80/x - Step 3: Cross multiply
279,936,775.60x = 419,905,163.40 × 177,816,122.80 - Step 4: Simplify right side
279,936,775.60x = 74,665,908,099,488,464 - Step 5: Solve for x
x = 74,665,908,099,488,464/279,936,775.60 - Step 6: Final answer
x = 266,724,184.20
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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.