Finding the Fourth Proportional to 11,509,788.48, 15,883,509.68 and 6,353,151.12
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Solution
The fourth proportional to 11,509,788.48, 15,883,509.68 and 6,353,151.12 is: 8,767,349.42
Step by Step Solution
- Step 1: Write the proportion equation
11,509,788.48 : 15,883,509.68 = 6,353,151.12 : x - Step 2: Convert to fraction form
11,509,788.48/15,883,509.68 = 6,353,151.12/x - Step 3: Cross multiply
11,509,788.48x = 15,883,509.68 × 6,353,151.12 - Step 4: Simplify right side
11,509,788.48x = 100,910,337,313,022.84 - Step 5: Solve for x
x = 100,910,337,313,022.84/11,509,788.48 - Step 6: Final answer
x = 8,767,349.42
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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.