Finding the Fourth Proportional to 5,130,371.51, 7,078,193.57 and 2,954,871.08
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Solution
The fourth proportional to 5,130,371.51, 7,078,193.57 and 2,954,871.08 is: 4,076,731.96
Step by Step Solution
- Step 1: Write the proportion equation
5,130,371.51 : 7,078,193.57 = 2,954,871.08 : x - Step 2: Convert to fraction form
5,130,371.51/7,078,193.57 = 2,954,871.08/x - Step 3: Cross multiply
5,130,371.51x = 7,078,193.57 × 2,954,871.08 - Step 4: Simplify right side
5,130,371.51x = 20,915,149,478,634.96 - Step 5: Solve for x
x = 20,915,149,478,634.96/5,130,371.51 - Step 6: Final answer
x = 4,076,731.96
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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.