Finding the Fourth Proportional to 7,878,211.13, 10,880,899.43 and 5,295,407.87
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Solution
The fourth proportional to 7,878,211.13, 10,880,899.43 and 5,295,407.87 is: 7,313,690.82
Step by Step Solution
- Step 1: Write the proportion equation
7,878,211.13 : 10,880,899.43 = 5,295,407.87 : x - Step 2: Convert to fraction form
7,878,211.13/10,880,899.43 = 5,295,407.87/x - Step 3: Cross multiply
7,878,211.13x = 10,880,899.43 × 5,295,407.87 - Step 4: Simplify right side
7,878,211.13x = 57,618,800,475,025.73 - Step 5: Solve for x
x = 57,618,800,475,025.73/7,878,211.13 - Step 6: Final answer
x = 7,313,690.82
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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.