Finding the Fourth Proportional to 13,419,766.96, 20,129,088.18 and 4,321,663.18
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Solution
The fourth proportional to 13,419,766.96, 20,129,088.18 and 4,321,663.18 is: 6,482,313.70
Step by Step Solution
- Step 1: Write the proportion equation
13,419,766.96 : 20,129,088.18 = 4,321,663.18 : x - Step 2: Convert to fraction form
13,419,766.96/20,129,088.18 = 4,321,663.18/x - Step 3: Cross multiply
13,419,766.96x = 20,129,088.18 × 4,321,663.18 - Step 4: Simplify right side
13,419,766.96x = 86,991,139,234,479.20 - Step 5: Solve for x
x = 86,991,139,234,479.20/13,419,766.96 - Step 6: Final answer
x = 6,482,313.70
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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.