Finding the Fourth Proportional to 12,889,823.13, 17,787,548.70 and 7,088,586.93
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Solution
The fourth proportional to 12,889,823.13, 17,787,548.70 and 7,088,586.93 is: 9,782,026.02
Step by Step Solution
- Step 1: Write the proportion equation
12,889,823.13 : 17,787,548.70 = 7,088,586.93 : x - Step 2: Convert to fraction form
12,889,823.13/17,787,548.70 = 7,088,586.93/x - Step 3: Cross multiply
12,889,823.13x = 17,787,548.70 × 7,088,586.93 - Step 4: Simplify right side
12,889,823.13x = 126,088,585,231,558.48 - Step 5: Solve for x
x = 126,088,585,231,558.48/12,889,823.13 - Step 6: Final answer
x = 9,782,026.02
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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.