Finding the Fourth Proportional to 19,987,633.26, 27,583,023.36 and 10,820,275.98
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Solution
The fourth proportional to 19,987,633.26, 27,583,023.36 and 10,820,275.98 is: 14,932,029.28
Step by Step Solution
- Step 1: Write the proportion equation
19,987,633.26 : 27,583,023.36 = 10,820,275.98 : x - Step 2: Convert to fraction form
19,987,633.26/27,583,023.36 = 10,820,275.98/x - Step 3: Cross multiply
19,987,633.26x = 27,583,023.36 × 10,820,275.98 - Step 4: Simplify right side
19,987,633.26x = 298,455,925,117,986.88 - Step 5: Solve for x
x = 298,455,925,117,986.88/19,987,633.26 - Step 6: Final answer
x = 14,932,029.28
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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.