Finding the Fourth Proportional to 855,471,388.16, 1,283,001,620.76 and 394,967,103.68
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Solution
The fourth proportional to 855,471,388.16, 1,283,001,620.76 and 394,967,103.68 is: 592,355,794.92
Step by Step Solution
- Step 1: Write the proportion equation
855,471,388.16 : 1,283,001,620.76 = 394,967,103.68 : x - Step 2: Convert to fraction form
855,471,388.16/1,283,001,620.76 = 394,967,103.68/x - Step 3: Cross multiply
855,471,388.16x = 1,283,001,620.76 × 394,967,103.68 - Step 4: Simplify right side
855,471,388.16x = 506,743,434,168,322,944 - Step 5: Solve for x
x = 506,743,434,168,322,944/855,471,388.16 - Step 6: Final answer
x = 592,355,794.92
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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.