Finding the Fourth Proportional to 154,202,794.91, 212,797,871.68 and 88,122,536.45
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Solution
The fourth proportional to 154,202,794.91, 212,797,871.68 and 88,122,536.45 is: 121,607,965.76
Step by Step Solution
- Step 1: Write the proportion equation
154,202,794.91 : 212,797,871.68 = 88,122,536.45 : x - Step 2: Convert to fraction form
154,202,794.91/212,797,871.68 = 88,122,536.45/x - Step 3: Cross multiply
154,202,794.91x = 212,797,871.68 × 88,122,536.45 - Step 4: Simplify right side
154,202,794.91x = 18,752,288,203,603,224 - Step 5: Solve for x
x = 18,752,288,203,603,224/154,202,794.91 - Step 6: Final answer
x = 121,607,965.76
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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.