Finding the Fourth Proportional to 121,940,810.48, 168,273,812.44 and 66,185,033.80
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Solution
The fourth proportional to 121,940,810.48, 168,273,812.44 and 66,185,033.80 is: 91,332,900.94
Step by Step Solution
- Step 1: Write the proportion equation
121,940,810.48 : 168,273,812.44 = 66,185,033.80 : x - Step 2: Convert to fraction form
121,940,810.48/168,273,812.44 = 66,185,033.80/x - Step 3: Cross multiply
121,940,810.48x = 168,273,812.44 × 66,185,033.80 - Step 4: Simplify right side
121,940,810.48x = 11,137,207,963,996,260 - Step 5: Solve for x
x = 11,137,207,963,996,260/121,940,810.48 - Step 6: Final answer
x = 91,332,900.94
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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.