Finding the Fourth Proportional to 15,855,975.09, 21,883,060.76 and 8,888,534.49
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Solution
The fourth proportional to 15,855,975.09, 21,883,060.76 and 8,888,534.49 is: 12,267,195.12
Step by Step Solution
- Step 1: Write the proportion equation
15,855,975.09 : 21,883,060.76 = 8,888,534.49 : x - Step 2: Convert to fraction form
15,855,975.09/21,883,060.76 = 8,888,534.49/x - Step 3: Cross multiply
15,855,975.09x = 21,883,060.76 × 8,888,534.49 - Step 4: Simplify right side
15,855,975.09x = 194,508,340,267,582.94 - Step 5: Solve for x
x = 194,508,340,267,582.94/15,855,975.09 - Step 6: Final answer
x = 12,267,195.12
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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.