Finding the Fourth Proportional to 732,251,919.75, 1,010,515,064.79 and 397,730,974.53
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Solution
The fourth proportional to 732,251,919.75, 1,010,515,064.79 and 397,730,974.53 is: 548,872,772.68
Step by Step Solution
- Step 1: Write the proportion equation
732,251,919.75 : 1,010,515,064.79 = 397,730,974.53 : x - Step 2: Convert to fraction form
732,251,919.75/1,010,515,064.79 = 397,730,974.53/x - Step 3: Cross multiply
732,251,919.75x = 1,010,515,064.79 × 397,730,974.53 - Step 4: Simplify right side
732,251,919.75x = 401,913,141,496,172,736 - Step 5: Solve for x
x = 401,913,141,496,172,736/732,251,919.75 - Step 6: Final answer
x = 548,872,772.68
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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.