Finding the Fourth Proportional to 171,911,756.39, 257,867,714.43 and 55,327,095.99
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Solution
The fourth proportional to 171,911,756.39, 257,867,714.43 and 55,327,095.99 is: 82,990,669.68
Step by Step Solution
- Step 1: Write the proportion equation
171,911,756.39 : 257,867,714.43 = 55,327,095.99 : x - Step 2: Convert to fraction form
171,911,756.39/257,867,714.43 = 55,327,095.99/x - Step 3: Cross multiply
171,911,756.39x = 257,867,714.43 × 55,327,095.99 - Step 4: Simplify right side
171,911,756.39x = 14,267,071,788,990,520 - Step 5: Solve for x
x = 14,267,071,788,990,520/171,911,756.39 - Step 6: Final answer
x = 82,990,669.68
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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.