Finding the Fourth Proportional to 38,436,900.21, 57,643,486.20 and 11,145,204.63
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Solution
The fourth proportional to 38,436,900.21, 57,643,486.20 and 11,145,204.63 is: 16,714,366.81
Step by Step Solution
- Step 1: Write the proportion equation
38,436,900.21 : 57,643,486.20 = 11,145,204.63 : x - Step 2: Convert to fraction form
38,436,900.21/57,643,486.20 = 11,145,204.63/x - Step 3: Cross multiply
38,436,900.21x = 57,643,486.20 × 11,145,204.63 - Step 4: Simplify right side
38,436,900.21x = 642,448,449,285,581.12 - Step 5: Solve for x
x = 642,448,449,285,581.12/38,436,900.21 - Step 6: Final answer
x = 16,714,366.81
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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.