Finding the Fourth Proportional to 92,471,907.92, 138,514,840.79 and 55,466,439.42
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Solution
The fourth proportional to 92,471,907.92, 138,514,840.79 and 55,466,439.42 is: 83,083,881.35
Step by Step Solution
- Step 1: Write the proportion equation
92,471,907.92 : 138,514,840.79 = 55,466,439.42 : x - Step 2: Convert to fraction form
92,471,907.92/138,514,840.79 = 55,466,439.42/x - Step 3: Cross multiply
92,471,907.92x = 138,514,840.79 × 55,466,439.42 - Step 4: Simplify right side
92,471,907.92x = 7,682,925,025,263,045 - Step 5: Solve for x
x = 7,682,925,025,263,045/92,471,907.92 - Step 6: Final answer
x = 83,083,881.35
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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.