Finding the Fourth Proportional to 18,013,332.34, 24,839,819.57 and 15,408,460.03
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Solution
The fourth proportional to 18,013,332.34, 24,839,819.57 and 15,408,460.03 is: 21,247,782.46
Step by Step Solution
- Step 1: Write the proportion equation
18,013,332.34 : 24,839,819.57 = 15,408,460.03 : x - Step 2: Convert to fraction form
18,013,332.34/24,839,819.57 = 15,408,460.03/x - Step 3: Cross multiply
18,013,332.34x = 24,839,819.57 × 15,408,460.03 - Step 4: Simplify right side
18,013,332.34x = 382,743,367,019,753.06 - Step 5: Solve for x
x = 382,743,367,019,753.06/18,013,332.34 - Step 6: Final answer
x = 21,247,782.46
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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.