Finding the Fourth Proportional to 5,203,938.76, 7,181,492.00 and 2,880,869.76
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Solution
The fourth proportional to 5,203,938.76, 7,181,492.00 and 2,880,869.76 is: 3,975,631.55
Step by Step Solution
- Step 1: Write the proportion equation
5,203,938.76 : 7,181,492.00 = 2,880,869.76 : x - Step 2: Convert to fraction form
5,203,938.76/7,181,492.00 = 2,880,869.76/x - Step 3: Cross multiply
5,203,938.76x = 7,181,492.00 × 2,880,869.76 - Step 4: Simplify right side
5,203,938.76x = 20,688,943,120,077.57 - Step 5: Solve for x
x = 20,688,943,120,077.57/5,203,938.76 - Step 6: Final answer
x = 3,975,631.55
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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.