Finding the Fourth Proportional to 397,303,207.30, 548,274,074.99 and 218,683,276.47
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Solution
The fourth proportional to 397,303,207.30, 548,274,074.99 and 218,683,276.47 is: 301,780,526.61
Step by Step Solution
- Step 1: Write the proportion equation
397,303,207.30 : 548,274,074.99 = 218,683,276.47 : x - Step 2: Convert to fraction form
397,303,207.30/548,274,074.99 = 218,683,276.47/x - Step 3: Cross multiply
397,303,207.30x = 548,274,074.99 × 218,683,276.47 - Step 4: Simplify right side
397,303,207.30x = 119,898,371,122,507,264 - Step 5: Solve for x
x = 119,898,371,122,507,264/397,303,207.30 - Step 6: Final answer
x = 301,780,526.61
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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.