Finding the Fourth Proportional to 387,253,854.74, 581,052,319.17 and 202,977,536.72
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Solution
The fourth proportional to 387,253,854.74, 581,052,319.17 and 202,977,536.72 is: 304,556,215.53
Step by Step Solution
- Step 1: Write the proportion equation
387,253,854.74 : 581,052,319.17 = 202,977,536.72 : x - Step 2: Convert to fraction form
387,253,854.74/581,052,319.17 = 202,977,536.72/x - Step 3: Cross multiply
387,253,854.74x = 581,052,319.17 × 202,977,536.72 - Step 4: Simplify right side
387,253,854.74x = 117,940,568,450,569,824 - Step 5: Solve for x
x = 117,940,568,450,569,824/387,253,854.74 - Step 6: Final answer
x = 304,556,215.53
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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.