Finding the Fourth Proportional to 137,280,288.48, 189,450,497.68 and 80,768,979.12
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Solution
The fourth proportional to 137,280,288.48, 189,450,497.68 and 80,768,979.12 is: 111,463,367.84
Step by Step Solution
- Step 1: Write the proportion equation
137,280,288.48 : 189,450,497.68 = 80,768,979.12 : x - Step 2: Convert to fraction form
137,280,288.48/189,450,497.68 = 80,768,979.12/x - Step 3: Cross multiply
137,280,288.48x = 189,450,497.68 × 80,768,979.12 - Step 4: Simplify right side
137,280,288.48x = 15,301,723,291,389,530 - Step 5: Solve for x
x = 15,301,723,291,389,530/137,280,288.48 - Step 6: Final answer
x = 111,463,367.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.