Finding the Fourth Proportional to 186,699,169.62, 257,659,098.93 and 103,083,420.42
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Solution
The fourth proportional to 186,699,169.62, 257,659,098.93 and 103,083,420.42 is: 142,262,985.28
Step by Step Solution
- Step 1: Write the proportion equation
186,699,169.62 : 257,659,098.93 = 103,083,420.42 : x - Step 2: Convert to fraction form
186,699,169.62/257,659,098.93 = 103,083,420.42/x - Step 3: Cross multiply
186,699,169.62x = 257,659,098.93 × 103,083,420.42 - Step 4: Simplify right side
186,699,169.62x = 26,560,381,220,039,564 - Step 5: Solve for x
x = 26,560,381,220,039,564/186,699,169.62 - Step 6: Final answer
x = 142,262,985.28
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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.