Finding the Fourth Proportional to 73,993,553.70, 110,990,330.55 and 72,718,095.30
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Solution
The fourth proportional to 73,993,553.70, 110,990,330.55 and 72,718,095.30 is: 109,077,142.95
Step by Step Solution
- Step 1: Write the proportion equation
73,993,553.70 : 110,990,330.55 = 72,718,095.30 : x - Step 2: Convert to fraction form
73,993,553.70/110,990,330.55 = 72,718,095.30/x - Step 3: Cross multiply
73,993,553.70x = 110,990,330.55 × 72,718,095.30 - Step 4: Simplify right side
73,993,553.70x = 8,071,005,434,313,401 - Step 5: Solve for x
x = 8,071,005,434,313,401/73,993,553.70 - Step 6: Final answer
x = 109,077,142.95
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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.