Finding the Fourth Proportional to 408,253,133.80, 612,379,700.70 and 149,382,317.80
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Solution
The fourth proportional to 408,253,133.80, 612,379,700.70 and 149,382,317.80 is: 224,073,476.70
Step by Step Solution
- Step 1: Write the proportion equation
408,253,133.80 : 612,379,700.70 = 149,382,317.80 : x - Step 2: Convert to fraction form
408,253,133.80/612,379,700.70 = 149,382,317.80/x - Step 3: Cross multiply
408,253,133.80x = 612,379,700.70 × 149,382,317.80 - Step 4: Simplify right side
408,253,133.80x = 91,478,699,064,236,304 - Step 5: Solve for x
x = 91,478,699,064,236,304/408,253,133.80 - Step 6: Final answer
x = 224,073,476.70
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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.