Finding the Fourth Proportional to 263,721,581.92, 363,812,985.84 and 170,932,129.12
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Solution
The fourth proportional to 263,721,581.92, 363,812,985.84 and 170,932,129.12 is: 235,806,746.72
Step by Step Solution
- Step 1: Write the proportion equation
263,721,581.92 : 363,812,985.84 = 170,932,129.12 : x - Step 2: Convert to fraction form
263,721,581.92/363,812,985.84 = 170,932,129.12/x - Step 3: Cross multiply
263,721,581.92x = 363,812,985.84 × 170,932,129.12 - Step 4: Simplify right side
263,721,581.92x = 62,187,328,271,135,608 - Step 5: Solve for x
x = 62,187,328,271,135,608/263,721,581.92 - Step 6: Final answer
x = 235,806,746.72
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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.