Finding the Fourth Proportional to 20,539,937.97, 28,346,000.09 and 11,372,581.53
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Solution
The fourth proportional to 20,539,937.97, 28,346,000.09 and 11,372,581.53 is: 15,694,652.90
Step by Step Solution
- Step 1: Write the proportion equation
20,539,937.97 : 28,346,000.09 = 11,372,581.53 : x - Step 2: Convert to fraction form
20,539,937.97/28,346,000.09 = 11,372,581.53/x - Step 3: Cross multiply
20,539,937.97x = 28,346,000.09 × 11,372,581.53 - Step 4: Simplify right side
20,539,937.97x = 322,367,197,016,049.44 - Step 5: Solve for x
x = 322,367,197,016,049.44/20,539,937.97 - Step 6: Final answer
x = 15,694,652.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.