Finding the Fourth Proportional to 448,472,135.40, 672,708,203.10 and 293,503,939.80
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Solution
The fourth proportional to 448,472,135.40, 672,708,203.10 and 293,503,939.80 is: 440,255,909.70
Step by Step Solution
- Step 1: Write the proportion equation
448,472,135.40 : 672,708,203.10 = 293,503,939.80 : x - Step 2: Convert to fraction form
448,472,135.40/672,708,203.10 = 293,503,939.80/x - Step 3: Cross multiply
448,472,135.40x = 672,708,203.10 × 293,503,939.80 - Step 4: Simplify right side
448,472,135.40x = 197,442,507,945,628,576 - Step 5: Solve for x
x = 197,442,507,945,628,576/448,472,135.40 - Step 6: Final answer
x = 440,255,909.70
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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.