Finding the Fourth Proportional to 31,349,739.92, 43,263,175.91 and 17,221,522.09
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Solution
The fourth proportional to 31,349,739.92, 43,263,175.91 and 17,221,522.09 is: 23,765,994.27
Step by Step Solution
- Step 1: Write the proportion equation
31,349,739.92 : 43,263,175.91 = 17,221,522.09 : x - Step 2: Convert to fraction form
31,349,739.92/43,263,175.91 = 17,221,522.09/x - Step 3: Cross multiply
31,349,739.92x = 43,263,175.91 × 17,221,522.09 - Step 4: Simplify right side
31,349,739.92x = 745,057,739,423,355.25 - Step 5: Solve for x
x = 745,057,739,423,355.25/31,349,739.92 - Step 6: Final answer
x = 23,765,994.27
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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.