Finding the Fourth Proportional to 159,644,677.20, 239,467,015.80 and 121,380,925.20
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Solution
The fourth proportional to 159,644,677.20, 239,467,015.80 and 121,380,925.20 is: 182,071,387.80
Step by Step Solution
- Step 1: Write the proportion equation
159,644,677.20 : 239,467,015.80 = 121,380,925.20 : x - Step 2: Convert to fraction form
159,644,677.20/239,467,015.80 = 121,380,925.20/x - Step 3: Cross multiply
159,644,677.20x = 239,467,015.80 × 121,380,925.20 - Step 4: Simplify right side
159,644,677.20x = 29,066,727,932,687,020 - Step 5: Solve for x
x = 29,066,727,932,687,020/159,644,677.20 - Step 6: Final answer
x = 182,071,387.80
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1.5x scale
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.