Finding the Fourth Proportional to 305,461,862.36, 421,551,251.09 and 180,019,352.60
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Solution
The fourth proportional to 305,461,862.36, 421,551,251.09 and 180,019,352.60 is: 248,434,887.17
Step by Step Solution
- Step 1: Write the proportion equation
305,461,862.36 : 421,551,251.09 = 180,019,352.60 : x - Step 2: Convert to fraction form
305,461,862.36/421,551,251.09 = 180,019,352.60/x - Step 3: Cross multiply
305,461,862.36x = 421,551,251.09 × 180,019,352.60 - Step 4: Simplify right side
305,461,862.36x = 75,887,383,308,941,840 - Step 5: Solve for x
x = 75,887,383,308,941,840/305,461,862.36 - Step 6: Final answer
x = 248,434,887.17
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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.