Finding the Fourth Proportional to 220,332,556.97, 330,486,875.22 and 66,966,655.99
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Solution
The fourth proportional to 220,332,556.97, 330,486,875.22 and 66,966,655.99 is: 100,446,348.85
Step by Step Solution
- Step 1: Write the proportion equation
220,332,556.97 : 330,486,875.22 = 66,966,655.99 : x - Step 2: Convert to fraction form
220,332,556.97/330,486,875.22 = 66,966,655.99/x - Step 3: Cross multiply
220,332,556.97x = 330,486,875.22 × 66,966,655.99 - Step 4: Simplify right side
220,332,556.97x = 22,131,600,880,415,364 - Step 5: Solve for x
x = 22,131,600,880,415,364/220,332,556.97 - Step 6: Final answer
x = 100,446,348.85
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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.