Finding the Fourth Proportional to 531,145,869.62, 796,720,299.12 and 203,721,748.02
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Solution
The fourth proportional to 531,145,869.62, 796,720,299.12 and 203,721,748.02 is: 305,583,195.31
Step by Step Solution
- Step 1: Write the proportion equation
531,145,869.62 : 796,720,299.12 = 203,721,748.02 : x - Step 2: Convert to fraction form
531,145,869.62/796,720,299.12 = 203,721,748.02/x - Step 3: Cross multiply
531,145,869.62x = 796,720,299.12 × 203,721,748.02 - Step 4: Simplify right side
531,145,869.62x = 162,309,252,015,760,064 - Step 5: Solve for x
x = 162,309,252,015,760,064/531,145,869.62 - Step 6: Final answer
x = 305,583,195.31
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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.