Finding the Fourth Proportional to 186,971,112.99, 258,033,487.68 and 103,337,446.32
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Solution
The fourth proportional to 186,971,112.99, 258,033,487.68 and 103,337,446.32 is: 142,613,055.33
Step by Step Solution
- Step 1: Write the proportion equation
186,971,112.99 : 258,033,487.68 = 103,337,446.32 : x - Step 2: Convert to fraction form
186,971,112.99/258,033,487.68 = 103,337,446.32/x - Step 3: Cross multiply
186,971,112.99x = 258,033,487.68 × 103,337,446.32 - Step 4: Simplify right side
186,971,112.99x = 26,664,521,681,894,380 - Step 5: Solve for x
x = 26,664,521,681,894,380/186,971,112.99 - Step 6: Final answer
x = 142,613,055.33
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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.