Finding the Fourth Proportional to 84,085,435.80, 116,037,714.78 and 47,415,750.84
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Solution
The fourth proportional to 84,085,435.80, 116,037,714.78 and 47,415,750.84 is: 65,433,630.92
Step by Step Solution
- Step 1: Write the proportion equation
84,085,435.80 : 116,037,714.78 = 47,415,750.84 : x - Step 2: Convert to fraction form
84,085,435.80/116,037,714.78 = 47,415,750.84/x - Step 3: Cross multiply
84,085,435.80x = 116,037,714.78 × 47,415,750.84 - Step 4: Simplify right side
84,085,435.80x = 5,502,015,372,051,466 - Step 5: Solve for x
x = 5,502,015,372,051,466/84,085,435.80 - Step 6: Final answer
x = 65,433,630.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.