Finding the Fourth Proportional to 19,706,257.36, 27,207,431.28 and 17,637,690.70
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Solution
The fourth proportional to 19,706,257.36, 27,207,431.28 and 17,637,690.70 is: 24,351,466.08
Step by Step Solution
- Step 1: Write the proportion equation
19,706,257.36 : 27,207,431.28 = 17,637,690.70 : x - Step 2: Convert to fraction form
19,706,257.36/27,207,431.28 = 17,637,690.70/x - Step 3: Cross multiply
19,706,257.36x = 27,207,431.28 × 17,637,690.70 - Step 4: Simplify right side
19,706,257.36x = 479,876,257,658,145.12 - Step 5: Solve for x
x = 479,876,257,658,145.12/19,706,257.36 - Step 6: Final answer
x = 24,351,466.08
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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.