Finding the Fourth Proportional to 756,441,459.51, 1,135,006,950.71 and 388,234,982.02
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Solution
The fourth proportional to 756,441,459.51, 1,135,006,950.71 and 388,234,982.02 is: 582,529,417.92
Step by Step Solution
- Step 1: Write the proportion equation
756,441,459.51 : 1,135,006,950.71 = 388,234,982.02 : x - Step 2: Convert to fraction form
756,441,459.51/1,135,006,950.71 = 388,234,982.02/x - Step 3: Cross multiply
756,441,459.51x = 1,135,006,950.71 × 388,234,982.02 - Step 4: Simplify right side
756,441,459.51x = 440,649,403,099,530,624 - Step 5: Solve for x
x = 440,649,403,099,530,624/756,441,459.51 - Step 6: Final answer
x = 582,529,417.92
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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.