Finding the Fourth Proportional to 7,419,062.66, 11,128,812.69 and 6,332,725.90
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Solution
The fourth proportional to 7,419,062.66, 11,128,812.69 and 6,332,725.90 is: 9,499,275.52
Step by Step Solution
- Step 1: Write the proportion equation
7,419,062.66 : 11,128,812.69 = 6,332,725.90 : x - Step 2: Convert to fraction form
7,419,062.66/11,128,812.69 = 6,332,725.90/x - Step 3: Cross multiply
7,419,062.66x = 11,128,812.69 × 6,332,725.90 - Step 4: Simplify right side
7,419,062.66x = 70,475,720,302,567.59 - Step 5: Solve for x
x = 70,475,720,302,567.59/7,419,062.66 - Step 6: Final answer
x = 9,499,275.52
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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.