Finding the Fourth Proportional to 5,315,135.40, 7,973,970.21 and 1,720,903.41
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Solution
The fourth proportional to 5,315,135.40, 7,973,970.21 and 1,720,903.41 is: 2,581,765.37
Step by Step Solution
- Step 1: Write the proportion equation
5,315,135.40 : 7,973,970.21 = 1,720,903.41 : x - Step 2: Convert to fraction form
5,315,135.40/7,973,970.21 = 1,720,903.41/x - Step 3: Cross multiply
5,315,135.40x = 7,973,970.21 × 1,720,903.41 - Step 4: Simplify right side
5,315,135.40x = 13,722,432,525,627.42 - Step 5: Solve for x
x = 13,722,432,525,627.42/5,315,135.40 - Step 6: Final answer
x = 2,581,765.37
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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.