Finding the Fourth Proportional to 18,521,276.86, 27,782,965.06 and 5,743,598.14
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Solution
The fourth proportional to 18,521,276.86, 27,782,965.06 and 5,743,598.14 is: 8,615,722.75
Step by Step Solution
- Step 1: Write the proportion equation
18,521,276.86 : 27,782,965.06 = 5,743,598.14 : x - Step 2: Convert to fraction form
18,521,276.86/27,782,965.06 = 5,743,598.14/x - Step 3: Cross multiply
18,521,276.86x = 27,782,965.06 × 5,743,598.14 - Step 4: Simplify right side
18,521,276.86x = 159,574,186,442,300.97 - Step 5: Solve for x
x = 159,574,186,442,300.97/18,521,276.86 - Step 6: Final answer
x = 8,615,722.75
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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.