Finding the Fourth Proportional to 13,122,122.20, 18,108,539.92 and 7,320,904.84
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Solution
The fourth proportional to 13,122,122.20, 18,108,539.92 and 7,320,904.84 is: 10,102,854.97
Step by Step Solution
- Step 1: Write the proportion equation
13,122,122.20 : 18,108,539.92 = 7,320,904.84 : x - Step 2: Convert to fraction form
13,122,122.20/18,108,539.92 = 7,320,904.84/x - Step 3: Cross multiply
13,122,122.20x = 18,108,539.92 × 7,320,904.84 - Step 4: Simplify right side
13,122,122.20x = 132,570,897,545,661.22 - Step 5: Solve for x
x = 132,570,897,545,661.22/13,122,122.20 - Step 6: Final answer
x = 10,102,854.97
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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.