Finding the Fourth Proportional to 20,842,157.80, 31,291,230.30 and 13,302,548.20
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Solution
The fourth proportional to 20,842,157.80, 31,291,230.30 and 13,302,548.20 is: 19,971,689.27
Step by Step Solution
- Step 1: Write the proportion equation
20,842,157.80 : 31,291,230.30 = 13,302,548.20 : x - Step 2: Convert to fraction form
20,842,157.80/31,291,230.30 = 13,302,548.20/x - Step 3: Cross multiply
20,842,157.80x = 31,291,230.30 × 13,302,548.20 - Step 4: Simplify right side
20,842,157.80x = 416,253,099,303,050.44 - Step 5: Solve for x
x = 416,253,099,303,050.44/20,842,157.80 - Step 6: Final answer
x = 19,971,689.27
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.