Finding the Fourth Proportional to 3,258,615.60, 4,887,923.40 and 2,130,577.20
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Solution
The fourth proportional to 3,258,615.60, 4,887,923.40 and 2,130,577.20 is: 3,195,865.80
Step by Step Solution
- Step 1: Write the proportion equation
3,258,615.60 : 4,887,923.40 = 2,130,577.20 : x - Step 2: Convert to fraction form
3,258,615.60/4,887,923.40 = 2,130,577.20/x - Step 3: Cross multiply
3,258,615.60x = 4,887,923.40 × 2,130,577.20 - Step 4: Simplify right side
3,258,615.60x = 10,414,098,151,386.48 - Step 5: Solve for x
x = 10,414,098,151,386.48/3,258,615.60 - Step 6: Final answer
x = 3,195,865.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.