Finding the Fourth Proportional to 298,930,541.40, 448,395,812.10 and 251,313,427.80
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Solution
The fourth proportional to 298,930,541.40, 448,395,812.10 and 251,313,427.80 is: 376,970,141.70
Step by Step Solution
- Step 1: Write the proportion equation
298,930,541.40 : 448,395,812.10 = 251,313,427.80 : x - Step 2: Convert to fraction form
298,930,541.40/448,395,812.10 = 251,313,427.80/x - Step 3: Cross multiply
298,930,541.40x = 448,395,812.10 × 251,313,427.80 - Step 4: Simplify right side
298,930,541.40x = 112,687,888,550,015,728 - Step 5: Solve for x
x = 112,687,888,550,015,728/298,930,541.40 - Step 6: Final answer
x = 376,970,141.70
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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.