Finding the Fourth Proportional to 11,508,751.19, 15,881,833.89 and 6,281,586.09
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Solution
The fourth proportional to 11,508,751.19, 15,881,833.89 and 6,281,586.09 is: 8,668,456.31
Step by Step Solution
- Step 1: Write the proportion equation
11,508,751.19 : 15,881,833.89 = 6,281,586.09 : x - Step 2: Convert to fraction form
11,508,751.19/15,881,833.89 = 6,281,586.09/x - Step 3: Cross multiply
11,508,751.19x = 15,881,833.89 × 6,281,586.09 - Step 4: Simplify right side
11,508,751.19x = 99,763,106,811,113.66 - Step 5: Solve for x
x = 99,763,106,811,113.66/11,508,751.19 - Step 6: Final answer
x = 8,668,456.31
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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.