Finding the Fourth Proportional to 705,650,748.64, 973,758,031.68 and 392,378,236
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Solution
The fourth proportional to 705,650,748.64, 973,758,031.68 and 392,378,236 is: 541,459,722.81
Step by Step Solution
- Step 1: Write the proportion equation
705,650,748.64 : 973,758,031.68 = 392,378,236 : x - Step 2: Convert to fraction form
705,650,748.64/973,758,031.68 = 392,378,236/x - Step 3: Cross multiply
705,650,748.64x = 973,758,031.68 × 392,378,236 - Step 4: Simplify right side
705,650,748.64x = 382,081,458,761,430,464 - Step 5: Solve for x
x = 382,081,458,761,430,464/705,650,748.64 - Step 6: Final answer
x = 541,459,722.81
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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.