Finding the Fourth Proportional to 159,456,326.40, 239,184,489.60 and 86,707,958.40
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Solution
The fourth proportional to 159,456,326.40, 239,184,489.60 and 86,707,958.40 is: 130,061,937.60
Step by Step Solution
- Step 1: Write the proportion equation
159,456,326.40 : 239,184,489.60 = 86,707,958.40 : x - Step 2: Convert to fraction form
159,456,326.40/239,184,489.60 = 86,707,958.40/x - Step 3: Cross multiply
159,456,326.40x = 239,184,489.60 × 86,707,958.40 - Step 4: Simplify right side
159,456,326.40x = 20,739,198,774,162,032 - Step 5: Solve for x
x = 20,739,198,774,162,032/159,456,326.40 - Step 6: Final answer
x = 130,061,937.60
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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.