Finding the Fourth Proportional to 3,919,277,380.77, 5,408,593,316.19 and 2,135,145,494.59
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Solution
The fourth proportional to 3,919,277,380.77, 5,408,593,316.19 and 2,135,145,494.59 is: 2,946,495,623.86
Step by Step Solution
- Step 1: Write the proportion equation
3,919,277,380.77 : 5,408,593,316.19 = 2,135,145,494.59 : x - Step 2: Convert to fraction form
3,919,277,380.77/5,408,593,316.19 = 2,135,145,494.59/x - Step 3: Cross multiply
3,919,277,380.77x = 5,408,593,316.19 × 2,135,145,494.59 - Step 4: Simplify right side
3,919,277,380.77x = 11,548,133,651,119,144,960 - Step 5: Solve for x
x = 11,548,133,651,119,144,960/3,919,277,380.77 - Step 6: Final answer
x = 2,946,495,623.86
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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.