Finding the Fourth Proportional to 220,948,970.67, 331,519,027.91 and 118,593,434.07
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Solution
The fourth proportional to 220,948,970.67, 331,519,027.91 and 118,593,434.07 is: 177,941,448.92
Step by Step Solution
- Step 1: Write the proportion equation
220,948,970.67 : 331,519,027.91 = 118,593,434.07 : x - Step 2: Convert to fraction form
220,948,970.67/331,519,027.91 = 118,593,434.07/x - Step 3: Cross multiply
220,948,970.67x = 331,519,027.91 × 118,593,434.07 - Step 4: Simplify right side
220,948,970.67x = 39,315,979,978,802,104 - Step 5: Solve for x
x = 39,315,979,978,802,104/220,948,970.67 - Step 6: Final answer
x = 177,941,448.92
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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.