Finding the Fourth Proportional to 19,491,664.80, 29,239,340.40 and 5,308,240.80
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Solution
The fourth proportional to 19,491,664.80, 29,239,340.40 and 5,308,240.80 is: 7,962,863.17
Step by Step Solution
- Step 1: Write the proportion equation
19,491,664.80 : 29,239,340.40 = 5,308,240.80 : x - Step 2: Convert to fraction form
19,491,664.80/29,239,340.40 = 5,308,240.80/x - Step 3: Cross multiply
19,491,664.80x = 29,239,340.40 × 5,308,240.80 - Step 4: Simplify right side
19,491,664.80x = 155,209,459,676,368.31 - Step 5: Solve for x
x = 155,209,459,676,368.31/19,491,664.80 - Step 6: Final answer
x = 7,962,863.17
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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.