Finding the Fourth Proportional to 124,119,796.97, 171,285,311.70 and 71,939,100.09
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Solution
The fourth proportional to 124,119,796.97, 171,285,311.70 and 71,939,100.09 is: 99,275,953.42
Step by Step Solution
- Step 1: Write the proportion equation
124,119,796.97 : 171,285,311.70 = 71,939,100.09 : x - Step 2: Convert to fraction form
124,119,796.97/171,285,311.70 = 71,939,100.09/x - Step 3: Cross multiply
124,119,796.97x = 171,285,311.70 × 71,939,100.09 - Step 4: Simplify right side
124,119,796.97x = 12,322,111,182,214,138 - Step 5: Solve for x
x = 12,322,111,182,214,138/124,119,796.97 - Step 6: Final answer
x = 99,275,953.42
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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.