Finding the Fourth Proportional to 8,691,507.70, 13,037,261.55 and 6,679,905.10
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Solution
The fourth proportional to 8,691,507.70, 13,037,261.55 and 6,679,905.10 is: 10,019,857.65
Step by Step Solution
- Step 1: Write the proportion equation
8,691,507.70 : 13,037,261.55 = 6,679,905.10 : x - Step 2: Convert to fraction form
8,691,507.70/13,037,261.55 = 6,679,905.10/x - Step 3: Cross multiply
8,691,507.70x = 13,037,261.55 × 6,679,905.10 - Step 4: Simplify right side
8,691,507.70x = 87,087,669,917,878.91 - Step 5: Solve for x
x = 87,087,669,917,878.91/8,691,507.70 - Step 6: Final answer
x = 10,019,857.65
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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.