Finding the Fourth Proportional to 14,905,448.31, 20,569,604.99 and 8,379,020.65
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Solution
The fourth proportional to 14,905,448.31, 20,569,604.99 and 8,379,020.65 is: 11,563,097.02
Step by Step Solution
- Step 1: Write the proportion equation
14,905,448.31 : 20,569,604.99 = 8,379,020.65 : x - Step 2: Convert to fraction form
14,905,448.31/20,569,604.99 = 8,379,020.65/x - Step 3: Cross multiply
14,905,448.31x = 20,569,604.99 × 8,379,020.65 - Step 4: Simplify right side
14,905,448.31x = 172,353,144,973,553.03 - Step 5: Solve for x
x = 172,353,144,973,553.03/14,905,448.31 - Step 6: Final answer
x = 11,563,097.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.