Finding the Fourth Proportional to 13,206,416.80, 19,809,625.20 and 12,037,246.60
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Solution
The fourth proportional to 13,206,416.80, 19,809,625.20 and 12,037,246.60 is: 18,055,869.90
Step by Step Solution
- Step 1: Write the proportion equation
13,206,416.80 : 19,809,625.20 = 12,037,246.60 : x - Step 2: Convert to fraction form
13,206,416.80/19,809,625.20 = 12,037,246.60/x - Step 3: Cross multiply
13,206,416.80x = 19,809,625.20 × 12,037,246.60 - Step 4: Simplify right side
13,206,416.80x = 238,453,343,585,974.31 - Step 5: Solve for x
x = 238,453,343,585,974.31/13,206,416.80 - Step 6: Final answer
x = 18,055,869.90
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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.