Finding the Fourth Proportional to 225,938,445.65, 311,777,943.74 and 126,800,046.19
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Solution
The fourth proportional to 225,938,445.65, 311,777,943.74 and 126,800,046.19 is: 174,974,460.65
Step by Step Solution
- Step 1: Write the proportion equation
225,938,445.65 : 311,777,943.74 = 126,800,046.19 : x - Step 2: Convert to fraction form
225,938,445.65/311,777,943.74 = 126,800,046.19/x - Step 3: Cross multiply
225,938,445.65x = 311,777,943.74 × 126,800,046.19 - Step 4: Simplify right side
225,938,445.65x = 39,533,457,665,841,776 - Step 5: Solve for x
x = 39,533,457,665,841,776/225,938,445.65 - Step 6: Final answer
x = 174,974,460.65
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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.