Finding the Fourth Proportional to 8,212,194.18, 11,329,061.09 and 5,312,520.14
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Solution
The fourth proportional to 8,212,194.18, 11,329,061.09 and 5,312,520.14 is: 7,328,840.97
Step by Step Solution
- Step 1: Write the proportion equation
8,212,194.18 : 11,329,061.09 = 5,312,520.14 : x - Step 2: Convert to fraction form
8,212,194.18/11,329,061.09 = 5,312,520.14/x - Step 3: Cross multiply
8,212,194.18x = 11,329,061.09 × 5,312,520.14 - Step 4: Simplify right side
8,212,194.18x = 60,185,865,124,707.45 - Step 5: Solve for x
x = 60,185,865,124,707.45/8,212,194.18 - Step 6: Final answer
x = 7,328,840.97
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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.