Finding the Fourth Proportional to 327,470,971.80, 491,206,457.70 and 163,733,999.70
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Solution
The fourth proportional to 327,470,971.80, 491,206,457.70 and 163,733,999.70 is: 245,600,999.55
Step by Step Solution
- Step 1: Write the proportion equation
327,470,971.80 : 491,206,457.70 = 163,733,999.70 : x - Step 2: Convert to fraction form
327,470,971.80/491,206,457.70 = 163,733,999.70/x - Step 3: Cross multiply
327,470,971.80x = 491,206,457.70 × 163,733,999.70 - Step 4: Simplify right side
327,470,971.80x = 80,427,197,997,689,856 - Step 5: Solve for x
x = 80,427,197,997,689,856/327,470,971.80 - Step 6: Final answer
x = 245,600,999.55
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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.