Finding the Fourth Proportional to 2,130,015.40, 3,197,355.90 and 1,332,197.80
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Solution
The fourth proportional to 2,130,015.40, 3,197,355.90 and 1,332,197.80 is: 1,999,755.73
Step by Step Solution
- Step 1: Write the proportion equation
2,130,015.40 : 3,197,355.90 = 1,332,197.80 : x - Step 2: Convert to fraction form
2,130,015.40/3,197,355.90 = 1,332,197.80/x - Step 3: Cross multiply
2,130,015.40x = 3,197,355.90 × 1,332,197.80 - Step 4: Simplify right side
2,130,015.40x = 4,259,510,495,797.02 - Step 5: Solve for x
x = 4,259,510,495,797.02/2,130,015.40 - Step 6: Final answer
x = 1,999,755.73
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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.