Finding the Fourth Proportional to 20,518,319.97, 30,785,958.23 and 8,997,826.05
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Solution
The fourth proportional to 20,518,319.97, 30,785,958.23 and 8,997,826.05 is: 13,500,457.02
Step by Step Solution
- Step 1: Write the proportion equation
20,518,319.97 : 30,785,958.23 = 8,997,826.05 : x - Step 2: Convert to fraction form
20,518,319.97/30,785,958.23 = 8,997,826.05/x - Step 3: Cross multiply
20,518,319.97x = 30,785,958.23 × 8,997,826.05 - Step 4: Simplify right side
20,518,319.97x = 277,006,696,891,116.81 - Step 5: Solve for x
x = 277,006,696,891,116.81/20,518,319.97 - Step 6: Final answer
x = 13,500,457.02
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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.