Finding the Fourth Proportional to 387,985,502.40, 582,202,202.40 and 145,672,900.80
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Solution
The fourth proportional to 387,985,502.40, 582,202,202.40 and 145,672,900.80 is: 218,593,434.94
Step by Step Solution
- Step 1: Write the proportion equation
387,985,502.40 : 582,202,202.40 = 145,672,900.80 : x - Step 2: Convert to fraction form
387,985,502.40/582,202,202.40 = 145,672,900.80/x - Step 3: Cross multiply
387,985,502.40x = 582,202,202.40 × 145,672,900.80 - Step 4: Simplify right side
387,985,502.40x = 84,811,083,675,756,720 - Step 5: Solve for x
x = 84,811,083,675,756,720/387,985,502.40 - Step 6: Final answer
x = 218,593,434.94
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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.