Finding the Fourth Proportional to 19,647,246.40, 29,470,869.60 and 6,866,418.40
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Solution
The fourth proportional to 19,647,246.40, 29,470,869.60 and 6,866,418.40 is: 10,299,627.60
Step by Step Solution
- Step 1: Write the proportion equation
19,647,246.40 : 29,470,869.60 = 6,866,418.40 : x - Step 2: Convert to fraction form
19,647,246.40/29,470,869.60 = 6,866,418.40/x - Step 3: Cross multiply
19,647,246.40x = 29,470,869.60 × 6,866,418.40 - Step 4: Simplify right side
19,647,246.40x = 202,359,321,285,440.66 - Step 5: Solve for x
x = 202,359,321,285,440.66/19,647,246.40 - Step 6: Final answer
x = 10,299,627.60
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1.5x scale
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.