Finding the Fourth Proportional to 18,452,847.40, 27,679,271.10 and 6,318,277.90
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Solution
The fourth proportional to 18,452,847.40, 27,679,271.10 and 6,318,277.90 is: 9,477,416.85
Step by Step Solution
- Step 1: Write the proportion equation
18,452,847.40 : 27,679,271.10 = 6,318,277.90 : x - Step 2: Convert to fraction form
18,452,847.40/27,679,271.10 = 6,318,277.90/x - Step 3: Cross multiply
18,452,847.40x = 27,679,271.10 × 6,318,277.90 - Step 4: Simplify right side
18,452,847.40x = 174,885,326,879,238.72 - Step 5: Solve for x
x = 174,885,326,879,238.72/18,452,847.40 - Step 6: Final answer
x = 9,477,416.85
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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.