Finding the Fourth Proportional to 387,253,719.83, 581,052,117.09 and 202,977,401.91
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Solution
The fourth proportional to 387,253,719.83, 581,052,117.09 and 202,977,401.91 is: 304,556,013.44
Step by Step Solution
- Step 1: Write the proportion equation
387,253,719.83 : 581,052,117.09 = 202,977,401.91 : x - Step 2: Convert to fraction form
387,253,719.83/581,052,117.09 = 202,977,401.91/x - Step 3: Cross multiply
387,253,719.83x = 581,052,117.09 × 202,977,401.91 - Step 4: Simplify right side
387,253,719.83x = 117,940,449,099,815,536 - Step 5: Solve for x
x = 117,940,449,099,815,536/387,253,719.83 - Step 6: Final answer
x = 304,556,013.44
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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.