Finding the Fourth Proportional to 5,228,820.68, 7,215,947.56 and 2,905,811.12
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Solution
The fourth proportional to 5,228,820.68, 7,215,947.56 and 2,905,811.12 is: 4,010,116.61
Step by Step Solution
- Step 1: Write the proportion equation
5,228,820.68 : 7,215,947.56 = 2,905,811.12 : x - Step 2: Convert to fraction form
5,228,820.68/7,215,947.56 = 2,905,811.12/x - Step 3: Cross multiply
5,228,820.68x = 7,215,947.56 × 2,905,811.12 - Step 4: Simplify right side
5,228,820.68x = 20,968,180,661,184.87 - Step 5: Solve for x
x = 20,968,180,661,184.87/5,228,820.68 - Step 6: Final answer
x = 4,010,116.61
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1.5x scale
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.