Finding the Fourth Proportional to 71,482,768.78, 107,206,438.47 and 20,365,230.46
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Solution
The fourth proportional to 71,482,768.78, 107,206,438.47 and 20,365,230.46 is: 30,542,798.82
Step by Step Solution
- Step 1: Write the proportion equation
71,482,768.78 : 107,206,438.47 = 20,365,230.46 : x - Step 2: Convert to fraction form
71,482,768.78/107,206,438.47 = 20,365,230.46/x - Step 3: Cross multiply
71,482,768.78x = 107,206,438.47 × 20,365,230.46 - Step 4: Simplify right side
71,482,768.78x = 2,183,283,826,237,359.75 - Step 5: Solve for x
x = 2,183,283,826,237,359.75/71,482,768.78 - Step 6: Final answer
x = 30,542,798.82
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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.