Finding the Fourth Proportional to 42,120,544, 63,180,816 and 10,207,840
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Solution
The fourth proportional to 42,120,544, 63,180,816 and 10,207,840 is: 15,311,760
Step by Step Solution
- Step 1: Write the proportion equation
42,120,544 : 63,180,816 = 10,207,840 : x - Step 2: Convert to fraction form
42,120,544/63,180,816 = 10,207,840/x - Step 3: Cross multiply
42,120,544x = 63,180,816 × 10,207,840 - Step 4: Simplify right side
42,120,544x = 644,939,660,797,440 - Step 5: Solve for x
x = 644,939,660,797,440/42,120,544 - Step 6: Final answer
x = 15,311,760
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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.