Finding the Fourth Proportional to 10,243,618,937.48, 14,131,865,485 and 6,857,619,141.92
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Solution
The fourth proportional to 10,243,618,937.48, 14,131,865,485 and 6,857,619,141.92 is: 9,460,616,589.94
Step by Step Solution
- Step 1: Write the proportion equation
10,243,618,937.48 : 14,131,865,485 = 6,857,619,141.92 : x - Step 2: Convert to fraction form
10,243,618,937.48/14,131,865,485 = 6,857,619,141.92/x - Step 3: Cross multiply
10,243,618,937.48x = 14,131,865,485 × 6,857,619,141.92 - Step 4: Simplify right side
10,243,618,937.48x = 96,910,951,260,974,563,328 - Step 5: Solve for x
x = 96,910,951,260,974,563,328/10,243,618,937.48 - Step 6: Final answer
x = 9,460,616,589.94
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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.