Finding the Fourth Proportional to 268,272,562.40, 402,408,843.60 and 186,643,224.80
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Solution
The fourth proportional to 268,272,562.40, 402,408,843.60 and 186,643,224.80 is: 279,964,837.20
Step by Step Solution
- Step 1: Write the proportion equation
268,272,562.40 : 402,408,843.60 = 186,643,224.80 : x - Step 2: Convert to fraction form
268,272,562.40/402,408,843.60 = 186,643,224.80/x - Step 3: Cross multiply
268,272,562.40x = 402,408,843.60 × 186,643,224.80 - Step 4: Simplify right side
268,272,562.40x = 75,106,884,257,542,848 - Step 5: Solve for x
x = 75,106,884,257,542,848/268,272,562.40 - Step 6: Final answer
x = 279,964,837.20
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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.