Finding the Fourth Proportional to 85,161,857.16, 127,742,785.74 and 26,875,442.55
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Solution
The fourth proportional to 85,161,857.16, 127,742,785.74 and 26,875,442.55 is: 40,313,163.83
Step by Step Solution
- Step 1: Write the proportion equation
85,161,857.16 : 127,742,785.74 = 26,875,442.55 : x - Step 2: Convert to fraction form
85,161,857.16/127,742,785.74 = 26,875,442.55/x - Step 3: Cross multiply
85,161,857.16x = 127,742,785.74 × 26,875,442.55 - Step 4: Simplify right side
85,161,857.16x = 3,433,143,899,332,329 - Step 5: Solve for x
x = 3,433,143,899,332,329/85,161,857.16 - Step 6: Final answer
x = 40,313,163.83
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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.