Finding the Fourth Proportional to 15,071,062.83, 20,797,438.66 and 8,545,133.80
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Solution
The fourth proportional to 15,071,062.83, 20,797,438.66 and 8,545,133.80 is: 11,791,928.55
Step by Step Solution
- Step 1: Write the proportion equation
15,071,062.83 : 20,797,438.66 = 8,545,133.80 : x - Step 2: Convert to fraction form
15,071,062.83/20,797,438.66 = 8,545,133.80/x - Step 3: Cross multiply
15,071,062.83x = 20,797,438.66 × 8,545,133.80 - Step 4: Simplify right side
15,071,062.83x = 177,716,896,046,992.72 - Step 5: Solve for x
x = 177,716,896,046,992.72/15,071,062.83 - Step 6: Final answer
x = 11,791,928.55
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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.