Finding the Fourth Proportional to 20,866,905.20, 31,273,416.66 and 9,343,935.74
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Solution
The fourth proportional to 20,866,905.20, 31,273,416.66 and 9,343,935.74 is: 14,003,839.71
Step by Step Solution
- Step 1: Write the proportion equation
20,866,905.20 : 31,273,416.66 = 9,343,935.74 : x - Step 2: Convert to fraction form
20,866,905.20/31,273,416.66 = 9,343,935.74/x - Step 3: Cross multiply
20,866,905.20x = 31,273,416.66 × 9,343,935.74 - Step 4: Simplify right side
20,866,905.20x = 292,216,795,641,285.44 - Step 5: Solve for x
x = 292,216,795,641,285.44/20,866,905.20 - Step 6: Final answer
x = 14,003,839.71
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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.