Finding the Fourth Proportional to 80,776,135.85, 121,121,688.49 and 55,224,452.57
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Solution
The fourth proportional to 80,776,135.85, 121,121,688.49 and 55,224,452.57 is: 82,807,612.30
Step by Step Solution
- Step 1: Write the proportion equation
80,776,135.85 : 121,121,688.49 = 55,224,452.57 : x - Step 2: Convert to fraction form
80,776,135.85/121,121,688.49 = 55,224,452.57/x - Step 3: Cross multiply
80,776,135.85x = 121,121,688.49 × 55,224,452.57 - Step 4: Simplify right side
80,776,135.85x = 6,688,878,940,470,650 - Step 5: Solve for x
x = 6,688,878,940,470,650/80,776,135.85 - Step 6: Final answer
x = 82,807,612.30
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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.