Finding the Fourth Proportional to 3,919,277,490.96, 5,408,593,467.84 and 2,135,145,604.88
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Solution
The fourth proportional to 3,919,277,490.96, 5,408,593,467.84 and 2,135,145,604.88 is: 2,946,495,775.84
Step by Step Solution
- Step 1: Write the proportion equation
3,919,277,490.96 : 5,408,593,467.84 = 2,135,145,604.88 : x - Step 2: Convert to fraction form
3,919,277,490.96/5,408,593,467.84 = 2,135,145,604.88/x - Step 3: Cross multiply
3,919,277,490.96x = 5,408,593,467.84 × 2,135,145,604.88 - Step 4: Simplify right side
3,919,277,490.96x = 11,548,134,571,441,254,400 - Step 5: Solve for x
x = 11,548,134,571,441,254,400/3,919,277,490.96 - Step 6: Final answer
x = 2,946,495,775.84
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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.