Finding the Fourth Proportional to 20,690,285.20, 30,982,283.70 and 16,403,327.80
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Solution
The fourth proportional to 20,690,285.20, 30,982,283.70 and 16,403,327.80 is: 24,562,858.88
Step by Step Solution
- Step 1: Write the proportion equation
20,690,285.20 : 30,982,283.70 = 16,403,327.80 : x - Step 2: Convert to fraction form
20,690,285.20/30,982,283.70 = 16,403,327.80/x - Step 3: Cross multiply
20,690,285.20x = 30,982,283.70 × 16,403,327.80 - Step 4: Simplify right side
20,690,285.20x = 508,212,555,523,696.88 - Step 5: Solve for x
x = 508,212,555,523,696.88/20,690,285.20 - Step 6: Final answer
x = 24,562,858.88
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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.