Finding the Fourth Proportional to 397,418,591.97, 548,437,681.99 and 221,202,804.27
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Solution
The fourth proportional to 397,418,591.97, 548,437,681.99 and 221,202,804.27 is: 305,259,883.85
Step by Step Solution
- Step 1: Write the proportion equation
397,418,591.97 : 548,437,681.99 = 221,202,804.27 : x - Step 2: Convert to fraction form
397,418,591.97/548,437,681.99 = 221,202,804.27/x - Step 3: Cross multiply
397,418,591.97x = 548,437,681.99 × 221,202,804.27 - Step 4: Simplify right side
397,418,591.97x = 121,315,953,223,526,480 - Step 5: Solve for x
x = 121,315,953,223,526,480/397,418,591.97 - Step 6: Final answer
x = 305,259,883.85
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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.