Finding the Fourth Proportional to 153,682,519.05, 212,086,934.82 and 84,066,306.84
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Solution
The fourth proportional to 153,682,519.05, 212,086,934.82 and 84,066,306.84 is: 116,014,270.52
Step by Step Solution
- Step 1: Write the proportion equation
153,682,519.05 : 212,086,934.82 = 84,066,306.84 : x - Step 2: Convert to fraction form
153,682,519.05/212,086,934.82 = 84,066,306.84/x - Step 3: Cross multiply
153,682,519.05x = 212,086,934.82 × 84,066,306.84 - Step 4: Simplify right side
153,682,519.05x = 17,829,365,339,333,200 - Step 5: Solve for x
x = 17,829,365,339,333,200/153,682,519.05 - Step 6: Final answer
x = 116,014,270.52
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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.