Finding the Fourth Proportional to 305,461,863.36, 421,551,252.47 and 180,019,353.60
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Solution
The fourth proportional to 305,461,863.36, 421,551,252.47 and 180,019,353.60 is: 248,434,888.55
Step by Step Solution
- Step 1: Write the proportion equation
305,461,863.36 : 421,551,252.47 = 180,019,353.60 : x - Step 2: Convert to fraction form
305,461,863.36/421,551,252.47 = 180,019,353.60/x - Step 3: Cross multiply
305,461,863.36x = 421,551,252.47 × 180,019,353.60 - Step 4: Simplify right side
305,461,863.36x = 75,887,383,978,919,808 - Step 5: Solve for x
x = 75,887,383,978,919,808/305,461,863.36 - Step 6: Final answer
x = 248,434,888.55
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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.