Finding the Fourth Proportional to 326,625,296.40, 489,937,944.60 and 163,366,621.20
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Solution
The fourth proportional to 326,625,296.40, 489,937,944.60 and 163,366,621.20 is: 245,049,931.80
Step by Step Solution
- Step 1: Write the proportion equation
326,625,296.40 : 489,937,944.60 = 163,366,621.20 : x - Step 2: Convert to fraction form
326,625,296.40/489,937,944.60 = 163,366,621.20/x - Step 3: Cross multiply
326,625,296.40x = 489,937,944.60 × 163,366,621.20 - Step 4: Simplify right side
326,625,296.40x = 80,039,506,606,974,784 - Step 5: Solve for x
x = 80,039,506,606,974,784/326,625,296.40 - Step 6: Final answer
x = 245,049,931.80
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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.