Finding the Fourth Proportional to 115,457,416.64, 159,203,558.78 and 73,575,136.44
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Solution
The fourth proportional to 115,457,416.64, 159,203,558.78 and 73,575,136.44 is: 101,452,326.75
Step by Step Solution
- Step 1: Write the proportion equation
115,457,416.64 : 159,203,558.78 = 73,575,136.44 : x - Step 2: Convert to fraction form
115,457,416.64/159,203,558.78 = 73,575,136.44/x - Step 3: Cross multiply
115,457,416.64x = 159,203,558.78 × 73,575,136.44 - Step 4: Simplify right side
115,457,416.64x = 11,713,423,558,972,060 - Step 5: Solve for x
x = 11,713,423,558,972,060/115,457,416.64 - Step 6: Final answer
x = 101,452,326.75
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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.