Finding the Fourth Proportional to 20,416,380.93, 28,174,250.93 and 11,124,027.36
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Solution
The fourth proportional to 20,416,380.93, 28,174,250.93 and 11,124,027.36 is: 15,350,964.46
Step by Step Solution
- Step 1: Write the proportion equation
20,416,380.93 : 28,174,250.93 = 11,124,027.36 : x - Step 2: Convert to fraction form
20,416,380.93/28,174,250.93 = 11,124,027.36/x - Step 3: Cross multiply
20,416,380.93x = 28,174,250.93 × 11,124,027.36 - Step 4: Simplify right side
20,416,380.93x = 313,411,138,137,205.31 - Step 5: Solve for x
x = 313,411,138,137,205.31/20,416,380.93 - Step 6: Final answer
x = 15,350,964.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.