Finding the Fourth Proportional to 48,268,861.20, 72,403,291.80 and 48,268,861.20
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Solution
The fourth proportional to 48,268,861.20, 72,403,291.80 and 48,268,861.20 is: 72,403,291.80
Step by Step Solution
- Step 1: Write the proportion equation
48,268,861.20 : 72,403,291.80 = 48,268,861.20 : x - Step 2: Convert to fraction form
48,268,861.20/72,403,291.80 = 48,268,861.20/x - Step 3: Cross multiply
48,268,861.20x = 72,403,291.80 × 48,268,861.20 - Step 4: Simplify right side
48,268,861.20x = 3,494,824,442,317,298 - Step 5: Solve for x
x = 3,494,824,442,317,298/48,268,861.20 - Step 6: Final answer
x = 72,403,291.80
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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.