Finding the Fourth Proportional to 8,745,506.10, 13,118,259.15 and 8,391,212.10
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Solution
The fourth proportional to 8,745,506.10, 13,118,259.15 and 8,391,212.10 is: 12,586,818.15
Step by Step Solution
- Step 1: Write the proportion equation
8,745,506.10 : 13,118,259.15 = 8,391,212.10 : x - Step 2: Convert to fraction form
8,745,506.10/13,118,259.15 = 8,391,212.10/x - Step 3: Cross multiply
8,745,506.10x = 13,118,259.15 × 8,391,212.10 - Step 4: Simplify right side
8,745,506.10x = 110,078,094,910,415.72 - Step 5: Solve for x
x = 110,078,094,910,415.72/8,745,506.10 - Step 6: Final answer
x = 12,586,818.15
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Double scale
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Similar ratio
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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.