Finding the Fourth Proportional to 8,157,645.30, 12,225,445.12 and 3,106,200.18
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Solution
The fourth proportional to 8,157,645.30, 12,225,445.12 and 3,106,200.18 is: 4,655,103.09
Step by Step Solution
- Step 1: Write the proportion equation
8,157,645.30 : 12,225,445.12 = 3,106,200.18 : x - Step 2: Convert to fraction form
8,157,645.30/12,225,445.12 = 3,106,200.18/x - Step 3: Cross multiply
8,157,645.30x = 12,225,445.12 × 3,106,200.18 - Step 4: Simplify right side
8,157,645.30x = 37,974,679,832,324.12 - Step 5: Solve for x
x = 37,974,679,832,324.12/8,157,645.30 - Step 6: Final answer
x = 4,655,103.09
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1.5x scale
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.