Finding the Fourth Proportional to 220,332,561.53, 330,486,882.06 and 66,966,660.55
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Solution
The fourth proportional to 220,332,561.53, 330,486,882.06 and 66,966,660.55 is: 100,446,355.69
Step by Step Solution
- Step 1: Write the proportion equation
220,332,561.53 : 330,486,882.06 = 66,966,660.55 : x - Step 2: Convert to fraction form
220,332,561.53/330,486,882.06 = 66,966,660.55/x - Step 3: Cross multiply
220,332,561.53x = 330,486,882.06 × 66,966,660.55 - Step 4: Simplify right side
220,332,561.53x = 22,131,602,845,945,152 - Step 5: Solve for x
x = 22,131,602,845,945,152/220,332,561.53 - Step 6: Final answer
x = 100,446,355.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.