Finding the Fourth Proportional to 18,424,886.98, 27,640,872.87 and 7,064,449.66
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Solution
The fourth proportional to 18,424,886.98, 27,640,872.87 and 7,064,449.66 is: 10,598,032.71
Step by Step Solution
- Step 1: Write the proportion equation
18,424,886.98 : 27,640,872.87 = 7,064,449.66 : x - Step 2: Convert to fraction form
18,424,886.98/27,640,872.87 = 7,064,449.66/x - Step 3: Cross multiply
18,424,886.98x = 27,640,872.87 × 7,064,449.66 - Step 4: Simplify right side
18,424,886.98x = 195,267,554,948,574.75 - Step 5: Solve for x
x = 195,267,554,948,574.75/18,424,886.98 - Step 6: Final answer
x = 10,598,032.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.