Finding the Fourth Proportional to 12,982,652.16, 17,910,027.36 and 8,400,454.08
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Solution
The fourth proportional to 12,982,652.16, 17,910,027.36 and 8,400,454.08 is: 11,588,723.21
Step by Step Solution
- Step 1: Write the proportion equation
12,982,652.16 : 17,910,027.36 = 8,400,454.08 : x - Step 2: Convert to fraction form
12,982,652.16/17,910,027.36 = 8,400,454.08/x - Step 3: Cross multiply
12,982,652.16x = 17,910,027.36 × 8,400,454.08 - Step 4: Simplify right side
12,982,652.16x = 150,452,362,409,223.62 - Step 5: Solve for x
x = 150,452,362,409,223.62/12,982,652.16 - Step 6: Final answer
x = 11,588,723.21
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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.