Finding the Fourth Proportional to 84,741,765.12, 116,955,547.92 and 49,471,138.08
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Solution
The fourth proportional to 84,741,765.12, 116,955,547.92 and 49,471,138.08 is: 68,277,124.65
Step by Step Solution
- Step 1: Write the proportion equation
84,741,765.12 : 116,955,547.92 = 49,471,138.08 : x - Step 2: Convert to fraction form
84,741,765.12/116,955,547.92 = 49,471,138.08/x - Step 3: Cross multiply
84,741,765.12x = 116,955,547.92 × 49,471,138.08 - Step 4: Simplify right side
84,741,765.12x = 5,785,924,060,372,377 - Step 5: Solve for x
x = 5,785,924,060,372,377/84,741,765.12 - Step 6: Final answer
x = 68,277,124.65
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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.