Finding the Fourth Proportional to 13,455,497.70, 20,183,246.55 and 13,455,497.70
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Solution
The fourth proportional to 13,455,497.70, 20,183,246.55 and 13,455,497.70 is: 20,183,246.55
Step by Step Solution
- Step 1: Write the proportion equation
13,455,497.70 : 20,183,246.55 = 13,455,497.70 : x - Step 2: Convert to fraction form
13,455,497.70/20,183,246.55 = 13,455,497.70/x - Step 3: Cross multiply
13,455,497.70x = 20,183,246.55 × 13,455,497.70 - Step 4: Simplify right side
13,455,497.70x = 271,575,627,532,057.94 - Step 5: Solve for x
x = 271,575,627,532,057.94/13,455,497.70 - Step 6: Final answer
x = 20,183,246.55
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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.