Finding the Fourth Proportional to 154,086,565.24, 212,633,761.16 and 83,520,660.36
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Solution
The fourth proportional to 154,086,565.24, 212,633,761.16 and 83,520,660.36 is: 115,255,422.30
Step by Step Solution
- Step 1: Write the proportion equation
154,086,565.24 : 212,633,761.16 = 83,520,660.36 : x - Step 2: Convert to fraction form
154,086,565.24/212,633,761.16 = 83,520,660.36/x - Step 3: Cross multiply
154,086,565.24x = 212,633,761.16 × 83,520,660.36 - Step 4: Simplify right side
154,086,565.24x = 17,759,312,146,913,720 - Step 5: Solve for x
x = 17,759,312,146,913,720/154,086,565.24 - Step 6: Final answer
x = 115,255,422.30
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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.