Finding the Fourth Proportional to 13,866,685.51, 19,136,431.47 and 7,587,589.81
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Solution
The fourth proportional to 13,866,685.51, 19,136,431.47 and 7,587,589.81 is: 10,471,095.80
Step by Step Solution
- Step 1: Write the proportion equation
13,866,685.51 : 19,136,431.47 = 7,587,589.81 : x - Step 2: Convert to fraction form
13,866,685.51/19,136,431.47 = 7,587,589.81/x - Step 3: Cross multiply
13,866,685.51x = 19,136,431.47 × 7,587,589.81 - Step 4: Simplify right side
13,866,685.51x = 145,199,392,421,535.31 - Step 5: Solve for x
x = 145,199,392,421,535.31/13,866,685.51 - Step 6: Final answer
x = 10,471,095.80
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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.