Finding the Fourth Proportional to 15,118,934.76, 22,689,029.22 and 13,673,415.24
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Solution
The fourth proportional to 15,118,934.76, 22,689,029.22 and 13,673,415.24 is: 20,519,733.89
Step by Step Solution
- Step 1: Write the proportion equation
15,118,934.76 : 22,689,029.22 = 13,673,415.24 : x - Step 2: Convert to fraction form
15,118,934.76/22,689,029.22 = 13,673,415.24/x - Step 3: Cross multiply
15,118,934.76x = 22,689,029.22 × 13,673,415.24 - Step 4: Simplify right side
15,118,934.76x = 310,236,517,917,553.31 - Step 5: Solve for x
x = 310,236,517,917,553.31/15,118,934.76 - Step 6: Final answer
x = 20,519,733.89
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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.