Finding the Fourth Proportional to 397,376,403.87, 548,369,759.00 and 218,758,840.47
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Solution
The fourth proportional to 397,376,403.87, 548,369,759.00 and 218,758,840.47 is: 301,881,871.84
Step by Step Solution
- Step 1: Write the proportion equation
397,376,403.87 : 548,369,759.00 = 218,758,840.47 : x - Step 2: Convert to fraction form
397,376,403.87/548,369,759.00 = 218,758,840.47/x - Step 3: Cross multiply
397,376,403.87x = 548,369,759.00 × 218,758,840.47 - Step 4: Simplify right side
397,376,403.87x = 119,960,732,626,559,552 - Step 5: Solve for x
x = 119,960,732,626,559,552/397,376,403.87 - Step 6: Final answer
x = 301,881,871.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.