Finding the Fourth Proportional to 19,815,041.20, 29,694,568.20 and 14,657,220.40
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Solution
The fourth proportional to 19,815,041.20, 29,694,568.20 and 14,657,220.40 is: 21,965,123.69
Step by Step Solution
- Step 1: Write the proportion equation
19,815,041.20 : 29,694,568.20 = 14,657,220.40 : x - Step 2: Convert to fraction form
19,815,041.20/29,694,568.20 = 14,657,220.40/x - Step 3: Cross multiply
19,815,041.20x = 29,694,568.20 × 14,657,220.40 - Step 4: Simplify right side
19,815,041.20x = 435,239,830,790,231.25 - Step 5: Solve for x
x = 435,239,830,790,231.25/19,815,041.20 - Step 6: Final answer
x = 21,965,123.69
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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.