Finding the Fourth Proportional to 129,067,276.80, 193,600,915.20 and 48,277,747.20
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Solution
The fourth proportional to 129,067,276.80, 193,600,915.20 and 48,277,747.20 is: 72,416,620.80
Step by Step Solution
- Step 1: Write the proportion equation
129,067,276.80 : 193,600,915.20 = 48,277,747.20 : x - Step 2: Convert to fraction form
129,067,276.80/193,600,915.20 = 48,277,747.20/x - Step 3: Cross multiply
129,067,276.80x = 193,600,915.20 × 48,277,747.20 - Step 4: Simplify right side
129,067,276.80x = 9,346,616,041,714,238 - Step 5: Solve for x
x = 9,346,616,041,714,238/129,067,276.80 - Step 6: Final answer
x = 72,416,620.80
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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.