Finding the Fourth Proportional to 10,987,252.02, 15,159,315.24 and 8,656,920.09
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Solution
The fourth proportional to 10,987,252.02, 15,159,315.24 and 8,656,920.09 is: 11,944,113.09
Step by Step Solution
- Step 1: Write the proportion equation
10,987,252.02 : 15,159,315.24 = 8,656,920.09 : x - Step 2: Convert to fraction form
10,987,252.02/15,159,315.24 = 8,656,920.09/x - Step 3: Cross multiply
10,987,252.02x = 15,159,315.24 × 8,656,920.09 - Step 4: Simplify right side
10,987,252.02x = 131,232,980,651,799.17 - Step 5: Solve for x
x = 131,232,980,651,799.17/10,987,252.02 - Step 6: Final answer
x = 11,944,113.09
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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.