Finding the Fourth Proportional to 306,927,455.20, 423,747,588.72 and 199,738,915.36
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Solution
The fourth proportional to 306,927,455.20, 423,747,588.72 and 199,738,915.36 is: 275,761,852.92
Step by Step Solution
- Step 1: Write the proportion equation
306,927,455.20 : 423,747,588.72 = 199,738,915.36 : x - Step 2: Convert to fraction form
306,927,455.20/423,747,588.72 = 199,738,915.36/x - Step 3: Cross multiply
306,927,455.20x = 423,747,588.72 × 199,738,915.36 - Step 4: Simplify right side
306,927,455.20x = 84,638,883,757,348,176 - Step 5: Solve for x
x = 84,638,883,757,348,176/306,927,455.20 - Step 6: Final answer
x = 275,761,852.92
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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.