Finding the Fourth Proportional to 3,919,277,498.96, 5,408,593,478.88 and 2,135,145,612.88
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Solution
The fourth proportional to 3,919,277,498.96, 5,408,593,478.88 and 2,135,145,612.88 is: 2,946,495,786.88
Step by Step Solution
- Step 1: Write the proportion equation
3,919,277,498.96 : 5,408,593,478.88 = 2,135,145,612.88 : x - Step 2: Convert to fraction form
3,919,277,498.96/5,408,593,478.88 = 2,135,145,612.88/x - Step 3: Cross multiply
3,919,277,498.96x = 5,408,593,478.88 × 2,135,145,612.88 - Step 4: Simplify right side
3,919,277,498.96x = 11,548,134,638,282,010,624 - Step 5: Solve for x
x = 11,548,134,638,282,010,624/3,919,277,498.96 - Step 6: Final answer
x = 2,946,495,786.88
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1.5x scale
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.