Finding the Fourth Proportional to 80,451,979.30, 120,677,968.95 and 29,335,665.70
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Solution
The fourth proportional to 80,451,979.30, 120,677,968.95 and 29,335,665.70 is: 44,003,498.55
Step by Step Solution
- Step 1: Write the proportion equation
80,451,979.30 : 120,677,968.95 = 29,335,665.70 : x - Step 2: Convert to fraction form
80,451,979.30/120,677,968.95 = 29,335,665.70/x - Step 3: Cross multiply
80,451,979.30x = 120,677,968.95 × 29,335,665.70 - Step 4: Simplify right side
80,451,979.30x = 3,540,168,554,472,180 - Step 5: Solve for x
x = 3,540,168,554,472,180/80,451,979.30 - Step 6: Final answer
x = 44,003,498.55
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1.5x scale
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.