Finding the Fourth Proportional to 11,687,475.65, 16,128,407.00 and 6,530,879.57
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Solution
The fourth proportional to 11,687,475.65, 16,128,407.00 and 6,530,879.57 is: 9,012,440.91
Step by Step Solution
- Step 1: Write the proportion equation
11,687,475.65 : 16,128,407.00 = 6,530,879.57 : x - Step 2: Convert to fraction form
11,687,475.65/16,128,407.00 = 6,530,879.57/x - Step 3: Cross multiply
11,687,475.65x = 16,128,407.00 × 6,530,879.57 - Step 4: Simplify right side
11,687,475.65x = 105,332,683,659,648.56 - Step 5: Solve for x
x = 105,332,683,659,648.56/11,687,475.65 - Step 6: Final answer
x = 9,012,440.91
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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.