Finding the Fourth Proportional to 7,874,842.48, 11,816,498.70 and 7,588,212.10
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Solution
The fourth proportional to 7,874,842.48, 11,816,498.70 and 7,588,212.10 is: 11,386,398.98
Step by Step Solution
- Step 1: Write the proportion equation
7,874,842.48 : 11,816,498.70 = 7,588,212.10 : x - Step 2: Convert to fraction form
7,874,842.48/11,816,498.70 = 7,588,212.10/x - Step 3: Cross multiply
7,874,842.48x = 11,816,498.70 × 7,588,212.10 - Step 4: Simplify right side
7,874,842.48x = 89,666,098,385,433.02 - Step 5: Solve for x
x = 89,666,098,385,433.02/7,874,842.48 - Step 6: Final answer
x = 11,386,398.98
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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.