Finding the Fourth Proportional to 201,018,911.20, 301,528,366.80 and 180,611,576.80
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Solution
The fourth proportional to 201,018,911.20, 301,528,366.80 and 180,611,576.80 is: 270,917,365.20
Step by Step Solution
- Step 1: Write the proportion equation
201,018,911.20 : 301,528,366.80 = 180,611,576.80 : x - Step 2: Convert to fraction form
201,018,911.20/301,528,366.80 = 180,611,576.80/x - Step 3: Cross multiply
201,018,911.20x = 301,528,366.80 × 180,611,576.80 - Step 4: Simplify right side
201,018,911.20x = 54,459,513,777,676,776 - Step 5: Solve for x
x = 54,459,513,777,676,776/201,018,911.20 - Step 6: Final answer
x = 270,917,365.20
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1.5x scale
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.