Finding the Fourth Proportional to 312,575,184, 431,353,753.92 and 173,367,262.08
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Solution
The fourth proportional to 312,575,184, 431,353,753.92 and 173,367,262.08 is: 239,246,821.67
Step by Step Solution
- Step 1: Write the proportion equation
312,575,184 : 431,353,753.92 = 173,367,262.08 : x - Step 2: Convert to fraction form
312,575,184/431,353,753.92 = 173,367,262.08/x - Step 3: Cross multiply
312,575,184x = 431,353,753.92 × 173,367,262.08 - Step 4: Simplify right side
312,575,184x = 74,782,619,305,040,480 - Step 5: Solve for x
x = 74,782,619,305,040,480/312,575,184 - Step 6: Final answer
x = 239,246,821.67
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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.