Finding the Fourth Proportional to 233,113,622.82, 321,688,350.06 and 128,689,446.66
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Solution
The fourth proportional to 233,113,622.82, 321,688,350.06 and 128,689,446.66 is: 177,586,771.92
Step by Step Solution
- Step 1: Write the proportion equation
233,113,622.82 : 321,688,350.06 = 128,689,446.66 : x - Step 2: Convert to fraction form
233,113,622.82/321,688,350.06 = 128,689,446.66/x - Step 3: Cross multiply
233,113,622.82x = 321,688,350.06 × 128,689,446.66 - Step 4: Simplify right side
233,113,622.82x = 41,397,895,766,189,776 - Step 5: Solve for x
x = 41,397,895,766,189,776/233,113,622.82 - Step 6: Final answer
x = 177,586,771.92
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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.