Finding the Third Proportional to 490,844,408 and 781,407,276
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Solution
The third proportional to 490,844,408 and 781,407,276 is: 1,243,973,285.70
Step by Step Solution
- Step 1: Write the proportion equation
490,844,408 : 781,407,276 = 781,407,276 : x - Step 2: Convert to fraction form
490,844,408/781,407,276 = 781,407,276/x - Step 3: Cross multiply
490,844,408x = 781,407,276 × 781,407,276 - Step 4: Simplify right side
490,844,408x = 610,597,330,985,740,160 - Step 5: Solve for x
x = 610,597,330,985,740,160/490,844,408 - Step 6: Final answer
x = 1,243,973,285.70
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Why These Related Problems?
These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.