Finding the Fourth Proportional to 828,902,859.84, 1,243,337,215.68 and 276,245,422.56
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Solution
The fourth proportional to 828,902,859.84, 1,243,337,215.68 and 276,245,422.56 is: 414,362,443.62
Step by Step Solution
- Step 1: Write the proportion equation
828,902,859.84 : 1,243,337,215.68 = 276,245,422.56 : x - Step 2: Convert to fraction form
828,902,859.84/1,243,337,215.68 = 276,245,422.56/x - Step 3: Cross multiply
828,902,859.84x = 1,243,337,215.68 × 276,245,422.56 - Step 4: Simplify right side
828,902,859.84x = 343,466,214,530,095,488 - Step 5: Solve for x
x = 343,466,214,530,095,488/828,902,859.84 - Step 6: Final answer
x = 414,362,443.62
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1.5x scale
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.