Finding the Fourth Proportional to 18,971,512.32, 28,457,173.28 and 4,594,579.68
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Solution
The fourth proportional to 18,971,512.32, 28,457,173.28 and 4,594,579.68 is: 6,891,846.46
Step by Step Solution
- Step 1: Write the proportion equation
18,971,512.32 : 28,457,173.28 = 4,594,579.68 : x - Step 2: Convert to fraction form
18,971,512.32/28,457,173.28 = 4,594,579.68/x - Step 3: Cross multiply
18,971,512.32x = 28,457,173.28 × 4,594,579.68 - Step 4: Simplify right side
18,971,512.32x = 130,748,750,102,526.95 - Step 5: Solve for x
x = 130,748,750,102,526.95/18,971,512.32 - Step 6: Final answer
x = 6,891,846.46
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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.