Finding the Fourth Proportional to 66,529,393.40, 99,794,090.10 and 56,787,620.60
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Solution
The fourth proportional to 66,529,393.40, 99,794,090.10 and 56,787,620.60 is: 85,181,430.90
Step by Step Solution
- Step 1: Write the proportion equation
66,529,393.40 : 99,794,090.10 = 56,787,620.60 : x - Step 2: Convert to fraction form
66,529,393.40/99,794,090.10 = 56,787,620.60/x - Step 3: Cross multiply
66,529,393.40x = 99,794,090.10 × 56,787,620.60 - Step 4: Simplify right side
66,529,393.40x = 5,667,068,926,721,016 - Step 5: Solve for x
x = 5,667,068,926,721,016/66,529,393.40 - Step 6: Final answer
x = 85,181,430.90
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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.