Finding the Fourth Proportional to 7,408,138.65, 11,167,732.92 and 6,914,341.19
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Solution
The fourth proportional to 7,408,138.65, 11,167,732.92 and 6,914,341.19 is: 10,423,335.65
Step by Step Solution
- Step 1: Write the proportion equation
7,408,138.65 : 11,167,732.92 = 6,914,341.19 : x - Step 2: Convert to fraction form
7,408,138.65/11,167,732.92 = 6,914,341.19/x - Step 3: Cross multiply
7,408,138.65x = 11,167,732.92 × 6,914,341.19 - Step 4: Simplify right side
7,408,138.65x = 77,217,515,671,836.31 - Step 5: Solve for x
x = 77,217,515,671,836.31/7,408,138.65 - Step 6: Final answer
x = 10,423,335.65
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.