Finding the Fourth Proportional to 7,688,040.63, 10,609,717.50 and 4,250,503.09
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Solution
The fourth proportional to 7,688,040.63, 10,609,717.50 and 4,250,503.09 is: 5,865,816.69
Step by Step Solution
- Step 1: Write the proportion equation
7,688,040.63 : 10,609,717.50 = 4,250,503.09 : x - Step 2: Convert to fraction form
7,688,040.63/10,609,717.50 = 4,250,503.09/x - Step 3: Cross multiply
7,688,040.63x = 10,609,717.50 × 4,250,503.09 - Step 4: Simplify right side
7,688,040.63x = 45,096,637,031,039.22 - Step 5: Solve for x
x = 45,096,637,031,039.22/7,688,040.63 - Step 6: Final answer
x = 5,865,816.69
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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.