Finding the Fourth Proportional to 212,107,072.40, 318,160,977.65 and 66,551,804.07
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Solution
The fourth proportional to 212,107,072.40, 318,160,977.65 and 66,551,804.07 is: 99,827,821.90
Step by Step Solution
- Step 1: Write the proportion equation
212,107,072.40 : 318,160,977.65 = 66,551,804.07 : x - Step 2: Convert to fraction form
212,107,072.40/318,160,977.65 = 66,551,804.07/x - Step 3: Cross multiply
212,107,072.40x = 318,160,977.65 × 66,551,804.07 - Step 4: Simplify right side
212,107,072.40x = 21,174,187,046,949,688 - Step 5: Solve for x
x = 21,174,187,046,949,688/212,107,072.40 - Step 6: Final answer
x = 99,827,821.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.