Finding the Fourth Proportional to 5,163,722.60, 7,126,028.74 and 2,871,884.36
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Solution
The fourth proportional to 5,163,722.60, 7,126,028.74 and 2,871,884.36 is: 3,963,251.33
Step by Step Solution
- Step 1: Write the proportion equation
5,163,722.60 : 7,126,028.74 = 2,871,884.36 : x - Step 2: Convert to fraction form
5,163,722.60/7,126,028.74 = 2,871,884.36/x - Step 3: Cross multiply
5,163,722.60x = 7,126,028.74 × 2,871,884.36 - Step 4: Simplify right side
5,163,722.60x = 20,465,130,487,316.51 - Step 5: Solve for x
x = 20,465,130,487,316.51/5,163,722.60 - Step 6: Final answer
x = 3,963,251.33
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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.