Finding the Fourth Proportional to 180,559,161.12, 249,247,918.24 and 121,901,278.72
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Solution
The fourth proportional to 180,559,161.12, 249,247,918.24 and 121,901,278.72 is: 168,275,260.94
Step by Step Solution
- Step 1: Write the proportion equation
180,559,161.12 : 249,247,918.24 = 121,901,278.72 : x - Step 2: Convert to fraction form
180,559,161.12/249,247,918.24 = 121,901,278.72/x - Step 3: Cross multiply
180,559,161.12x = 249,247,918.24 × 121,901,278.72 - Step 4: Simplify right side
180,559,161.12x = 30,383,639,951,754,012 - Step 5: Solve for x
x = 30,383,639,951,754,012/180,559,161.12 - Step 6: Final answer
x = 168,275,260.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.