Finding the Fourth Proportional to 3,855,281.68, 5,320,318.44 and 2,136,430
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Solution
The fourth proportional to 3,855,281.68, 5,320,318.44 and 2,136,430 is: 2,948,289.87
Step by Step Solution
- Step 1: Write the proportion equation
3,855,281.68 : 5,320,318.44 = 2,136,430 : x - Step 2: Convert to fraction form
3,855,281.68/5,320,318.44 = 2,136,430/x - Step 3: Cross multiply
3,855,281.68x = 5,320,318.44 × 2,136,430 - Step 4: Simplify right side
3,855,281.68x = 11,366,487,924,769.20 - Step 5: Solve for x
x = 11,366,487,924,769.20/3,855,281.68 - Step 6: Final answer
x = 2,948,289.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.