Finding the Fourth Proportional to 351,575,131.88, 485,129,087.94 and 192,763,462.12
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Solution
The fourth proportional to 351,575,131.88, 485,129,087.94 and 192,763,462.12 is: 265,989,127.46
Step by Step Solution
- Step 1: Write the proportion equation
351,575,131.88 : 485,129,087.94 = 192,763,462.12 : x - Step 2: Convert to fraction form
351,575,131.88/485,129,087.94 = 192,763,462.12/x - Step 3: Cross multiply
351,575,131.88x = 485,129,087.94 × 192,763,462.12 - Step 4: Simplify right side
351,575,131.88x = 93,515,162,566,432,336 - Step 5: Solve for x
x = 93,515,162,566,432,336/351,575,131.88 - Step 6: Final answer
x = 265,989,127.46
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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.