Finding the Fourth Proportional to 43,980,129.60, 66,096,165.60 and 38,437,396.80
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Solution
The fourth proportional to 43,980,129.60, 66,096,165.60 and 38,437,396.80 is: 57,766,190.49
Step by Step Solution
- Step 1: Write the proportion equation
43,980,129.60 : 66,096,165.60 = 38,437,396.80 : x - Step 2: Convert to fraction form
43,980,129.60/66,096,165.60 = 38,437,396.80/x - Step 3: Cross multiply
43,980,129.60x = 66,096,165.60 × 38,437,396.80 - Step 4: Simplify right side
43,980,129.60x = 2,540,564,544,125,710 - Step 5: Solve for x
x = 2,540,564,544,125,710/43,980,129.60 - Step 6: Final answer
x = 57,766,190.49
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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.