Finding the Fourth Proportional to 220,176,266.40, 330,180,418.80 and 66,771,338.40
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Solution
The fourth proportional to 220,176,266.40, 330,180,418.80 and 66,771,338.40 is: 100,131,539.32
Step by Step Solution
- Step 1: Write the proportion equation
220,176,266.40 : 330,180,418.80 = 66,771,338.40 : x - Step 2: Convert to fraction form
220,176,266.40/330,180,418.80 = 66,771,338.40/x - Step 3: Cross multiply
220,176,266.40x = 330,180,418.80 × 66,771,338.40 - Step 4: Simplify right side
220,176,266.40x = 22,046,588,476,748,524 - Step 5: Solve for x
x = 22,046,588,476,748,524/220,176,266.40 - Step 6: Final answer
x = 100,131,539.32
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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.