Finding the Fourth Proportional to 14,355,407.20, 21,544,861.20 and 14,243,432.80
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Solution
The fourth proportional to 14,355,407.20, 21,544,861.20 and 14,243,432.80 is: 21,376,807.95
Step by Step Solution
- Step 1: Write the proportion equation
14,355,407.20 : 21,544,861.20 = 14,243,432.80 : x - Step 2: Convert to fraction form
14,355,407.20/21,544,861.20 = 14,243,432.80/x - Step 3: Cross multiply
14,355,407.20x = 21,544,861.20 × 14,243,432.80 - Step 4: Simplify right side
14,355,407.20x = 306,872,782,687,527.38 - Step 5: Solve for x
x = 306,872,782,687,527.38/14,355,407.20 - Step 6: Final answer
x = 21,376,807.95
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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.