Finding the Fourth Proportional to 12,658,378.49, 17,468,615.84 and 6,857,160.23
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Solution
The fourth proportional to 12,658,378.49, 17,468,615.84 and 6,857,160.23 is: 9,462,910.11
Step by Step Solution
- Step 1: Write the proportion equation
12,658,378.49 : 17,468,615.84 = 6,857,160.23 : x - Step 2: Convert to fraction form
12,658,378.49/17,468,615.84 = 6,857,160.23/x - Step 3: Cross multiply
12,658,378.49x = 17,468,615.84 × 6,857,160.23 - Step 4: Simplify right side
12,658,378.49x = 119,785,097,811,196.05 - Step 5: Solve for x
x = 119,785,097,811,196.05/12,658,378.49 - Step 6: Final answer
x = 9,462,910.11
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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.