Finding the Fourth Proportional to 121,451,642.90, 182,177,464.35 and 109,736,321.30
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Solution
The fourth proportional to 121,451,642.90, 182,177,464.35 and 109,736,321.30 is: 164,604,481.95
Step by Step Solution
- Step 1: Write the proportion equation
121,451,642.90 : 182,177,464.35 = 109,736,321.30 : x - Step 2: Convert to fraction form
121,451,642.90/182,177,464.35 = 109,736,321.30/x - Step 3: Cross multiply
121,451,642.90x = 182,177,464.35 × 109,736,321.30 - Step 4: Simplify right side
121,451,642.90x = 19,991,484,761,530,896 - Step 5: Solve for x
x = 19,991,484,761,530,896/121,451,642.90 - Step 6: Final answer
x = 164,604,481.95
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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.