Finding the Fourth Proportional to 12,492,088.40, 18,738,132.60 and 6,106,437.20
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Solution
The fourth proportional to 12,492,088.40, 18,738,132.60 and 6,106,437.20 is: 9,159,655.80
Step by Step Solution
- Step 1: Write the proportion equation
12,492,088.40 : 18,738,132.60 = 6,106,437.20 : x - Step 2: Convert to fraction form
12,492,088.40/18,738,132.60 = 6,106,437.20/x - Step 3: Cross multiply
12,492,088.40x = 18,738,132.60 × 6,106,437.20 - Step 4: Simplify right side
12,492,088.40x = 114,423,229,967,172.73 - Step 5: Solve for x
x = 114,423,229,967,172.73/12,492,088.40 - Step 6: Final answer
x = 9,159,655.80
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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.