Finding the Fourth Proportional to 16,390,179.80, 24,585,269.70 and 7,887,123.80
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Solution
The fourth proportional to 16,390,179.80, 24,585,269.70 and 7,887,123.80 is: 11,830,685.70
Step by Step Solution
- Step 1: Write the proportion equation
16,390,179.80 : 24,585,269.70 = 7,887,123.80 : x - Step 2: Convert to fraction form
16,390,179.80/24,585,269.70 = 7,887,123.80/x - Step 3: Cross multiply
16,390,179.80x = 24,585,269.70 × 7,887,123.80 - Step 4: Simplify right side
16,390,179.80x = 193,907,065,780,288.84 - Step 5: Solve for x
x = 193,907,065,780,288.84/16,390,179.80 - Step 6: Final answer
x = 11,830,685.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.