Finding the Fourth Proportional to 19,382,173.21, 26,747,401.40 and 11,238,135.13
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Solution
The fourth proportional to 19,382,173.21, 26,747,401.40 and 11,238,135.13 is: 15,508,627.85
Step by Step Solution
- Step 1: Write the proportion equation
19,382,173.21 : 26,747,401.40 = 11,238,135.13 : x - Step 2: Convert to fraction form
19,382,173.21/26,747,401.40 = 11,238,135.13/x - Step 3: Cross multiply
19,382,173.21x = 26,747,401.40 × 11,238,135.13 - Step 4: Simplify right side
19,382,173.21x = 300,590,911,309,551.19 - Step 5: Solve for x
x = 300,590,911,309,551.19/19,382,173.21 - Step 6: Final answer
x = 15,508,627.85
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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.